1 | // stylelint-disable declaration-no-important, selector-no-qualifying-type, property-no-vendor-prefix
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2 |
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3 |
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4 | // Reboot
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5 | //
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6 | // Normalization of HTML elements, manually forked from Normalize.css to remove
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7 | // styles targeting irrelevant browsers while applying new styles.
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8 | //
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9 | // Normalize is licensed MIT. https://github.com/necolas/normalize.css
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10 |
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11 |
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12 | // Document
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13 | //
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14 | // Change from `box-sizing: content-box` so that `width` is not affected by `padding` or `border`.
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15 |
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16 | *,
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17 | *::before,
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18 | *::after {
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19 | box-sizing: border-box;
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20 | }
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21 |
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22 |
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23 | // Root
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24 | //
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25 | // Ability to the value of the root font sizes, affecting the value of `rem`.
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26 | // null by default, thus nothing is generated.
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27 |
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28 | :root {
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29 | font-size: $font-size-root;
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30 |
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31 | @if $enable-smooth-scroll {
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32 | @media (prefers-reduced-motion: no-preference) {
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33 | scroll-behavior: smooth;
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34 | }
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35 | }
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36 | }
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37 |
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38 |
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39 | // Body
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40 | //
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41 | // 1. Remove the margin in all browsers.
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42 | // 2. As a best practice, apply a default `background-color`.
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43 | // 3. Prevent adjustments of font size after orientation changes in iOS.
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44 | // 4. Change the default tap highlight to be completely transparent in iOS.
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45 |
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46 | body {
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47 | margin: 0; // 1
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48 | font-family: $font-family-base;
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49 | @include font-size($font-size-base);
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50 | font-weight: $font-weight-base;
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51 | line-height: $line-height-base;
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52 | color: $body-color;
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53 | text-align: $body-text-align;
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54 | background-color: $body-bg; // 2
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55 | -webkit-text-size-adjust: 100%; // 3
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56 | -webkit-tap-highlight-color: rgba($black, 0); // 4
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57 | }
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58 |
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59 |
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60 | // Content grouping
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61 | //
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62 | // 1. Reset Firefox's gray color
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63 | // 2. Set correct height and prevent the `size` attribute to make the `hr` look like an input field
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64 |
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65 | hr {
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66 | margin: $hr-margin-y 0;
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67 | color: $hr-color; // 1
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68 | background-color: currentColor;
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69 | border: 0;
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70 | opacity: $hr-opacity;
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71 | }
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72 |
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73 | hr:not([size]) {
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74 | height: $hr-height; // 2
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75 | }
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76 |
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77 |
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78 | // Typography
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79 | //
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80 | // 1. Remove top margins from headings
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81 | // By default, `<h1>`-`<h6>` all receive top and bottom margins. We nuke the top
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82 | // margin for easier control within type scales as it avoids margin collapsing.
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83 |
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84 | %heading {
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85 | margin-top: 0; // 1
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86 | margin-bottom: $headings-margin-bottom;
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87 | font-family: $headings-font-family;
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88 | font-style: $headings-font-style;
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89 | font-weight: $headings-font-weight;
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90 | line-height: $headings-line-height;
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91 | color: $headings-color;
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92 | }
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93 |
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94 | h1 {
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95 | @extend %heading;
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96 | @include font-size($h1-font-size);
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97 | }
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98 |
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99 | h2 {
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100 | @extend %heading;
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101 | @include font-size($h2-font-size);
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102 | }
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103 |
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104 | h3 {
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105 | @extend %heading;
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106 | @include font-size($h3-font-size);
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107 | }
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108 |
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109 | h4 {
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110 | @extend %heading;
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111 | @include font-size($h4-font-size);
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112 | }
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113 |
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114 | h5 {
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115 | @extend %heading;
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116 | @include font-size($h5-font-size);
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117 | }
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118 |
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119 | h6 {
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120 | @extend %heading;
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121 | @include font-size($h6-font-size);
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122 | }
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123 |
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124 |
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125 | // Reset margins on paragraphs
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126 | //
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127 | // Similarly, the top margin on `<p>`s get reset. However, we also reset the
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128 | // bottom margin to use `rem` units instead of `em`.
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129 |
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130 | p {
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131 | margin-top: 0;
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132 | margin-bottom: $paragraph-margin-bottom;
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133 | }
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134 |
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135 |
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136 | // Abbreviations
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137 | //
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138 | // 1. Duplicate behavior to the data-bs-* attribute for our tooltip plugin
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139 | // 2. Add the correct text decoration in Chrome, Edge, Opera, and Safari.
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140 | // 3. Add explicit cursor to indicate changed behavior.
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141 | // 4. Prevent the text-decoration to be skipped.
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142 |
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143 | abbr[title],
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144 | abbr[data-bs-original-title] { // 1
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145 | text-decoration: underline dotted; // 2
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146 | cursor: help; // 3
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147 | text-decoration-skip-ink: none; // 4
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148 | }
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149 |
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150 |
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151 | // Address
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152 |
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153 | address {
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154 | margin-bottom: 1rem;
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155 | font-style: normal;
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156 | line-height: inherit;
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157 | }
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158 |
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159 |
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160 | // Lists
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161 |
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162 | ol,
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163 | ul {
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164 | padding-left: 2rem;
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165 | }
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166 |
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167 | ol,
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168 | ul,
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169 | dl {
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170 | margin-top: 0;
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171 | margin-bottom: 1rem;
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172 | }
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173 |
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174 | ol ol,
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175 | ul ul,
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176 | ol ul,
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177 | ul ol {
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178 | margin-bottom: 0;
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179 | }
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180 |
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181 | dt {
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182 | font-weight: $dt-font-weight;
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183 | }
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184 |
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185 | // 1. Undo browser default
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186 |
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187 | dd {
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188 | margin-bottom: .5rem;
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189 | margin-left: 0; // 1
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190 | }
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191 |
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192 |
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193 | // Blockquote
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194 |
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195 | blockquote {
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196 | margin: 0 0 1rem;
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197 | }
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198 |
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199 |
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200 | // Strong
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201 | //
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202 | // Add the correct font weight in Chrome, Edge, and Safari
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203 |
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204 | b,
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205 | strong {
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206 | font-weight: $font-weight-bolder;
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207 | }
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208 |
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209 |
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210 | // Small
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211 | //
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212 | // Add the correct font size in all browsers
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213 |
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214 | small {
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215 | @include font-size($small-font-size);
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216 | }
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217 |
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218 |
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219 | // Mark
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220 |
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221 | mark {
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222 | padding: $mark-padding;
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223 | background-color: $mark-bg;
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224 | }
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225 |
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226 |
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227 | // Sub and Sup
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228 | //
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229 | // Prevent `sub` and `sup` elements from affecting the line height in
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230 | // all browsers.
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231 |
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232 | sub,
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233 | sup {
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234 | position: relative;
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235 | @include font-size($sub-sup-font-size);
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236 | line-height: 0;
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237 | vertical-align: baseline;
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238 | }
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239 |
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240 | sub { bottom: -.25em; }
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241 | sup { top: -.5em; }
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242 |
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243 |
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244 | // Links
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245 |
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246 | a {
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247 | color: $link-color;
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248 | text-decoration: $link-decoration;
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249 |
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250 | &:hover {
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251 | color: $link-hover-color;
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252 | text-decoration: $link-hover-decoration;
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253 | }
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254 | }
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255 |
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256 | // And undo these styles for placeholder links/named anchors (without href).
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257 | // It would be more straightforward to just use a[href] in previous block, but that
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258 | // causes specificity issues in many other styles that are too complex to fix.
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259 | // See https://github.com/twbs/bootstrap/issues/19402
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260 |
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261 | a:not([href]):not([class]) {
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262 | &,
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263 | &:hover {
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264 | color: inherit;
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265 | text-decoration: none;
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266 | }
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267 | }
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268 |
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269 |
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270 | // Code
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271 |
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272 | pre,
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273 | code,
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274 | kbd,
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275 | samp {
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276 | font-family: $font-family-code;
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277 | @include font-size(1em); // Correct the odd `em` font sizing in all browsers.
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278 | direction: ltr #{"/* rtl:ignore */"};
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279 | unicode-bidi: bidi-override;
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280 | }
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281 |
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282 | // 1. Remove browser default top margin
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283 | // 2. Reset browser default of `1em` to use `rem`s
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284 | // 3. Don't allow content to break outside
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285 |
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286 | pre {
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287 | display: block;
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288 | margin-top: 0; // 1
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289 | margin-bottom: 1rem; // 2
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290 | overflow: auto; // 3
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291 | @include font-size($code-font-size);
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292 | color: $pre-color;
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293 |
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294 | // Account for some code outputs that place code tags in pre tags
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295 | code {
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296 | @include font-size(inherit);
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297 | color: inherit;
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298 | word-break: normal;
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299 | }
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300 | }
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301 |
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302 | code {
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303 | @include font-size($code-font-size);
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304 | color: $code-color;
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305 | word-wrap: break-word;
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306 |
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307 | // Streamline the style when inside anchors to avoid broken underline and more
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308 | a > & {
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309 | color: inherit;
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310 | }
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311 | }
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312 |
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313 | kbd {
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314 | padding: $kbd-padding-y $kbd-padding-x;
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315 | @include font-size($kbd-font-size);
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316 | color: $kbd-color;
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317 | background-color: $kbd-bg;
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318 | @include border-radius($border-radius-sm);
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319 |
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320 | kbd {
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321 | padding: 0;
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322 | @include font-size(1em);
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323 | font-weight: $nested-kbd-font-weight;
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324 | }
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325 | }
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326 |
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327 |
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328 | // Figures
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329 | //
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330 | // Apply a consistent margin strategy (matches our type styles).
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331 |
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332 | figure {
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333 | margin: 0 0 1rem;
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334 | }
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335 |
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336 |
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337 | // Images and content
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338 |
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339 | img,
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340 | svg {
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341 | vertical-align: middle;
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342 | }
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343 |
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344 |
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345 | // Tables
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346 | //
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347 | // Prevent double borders
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348 |
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349 | table {
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350 | caption-side: bottom;
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351 | border-collapse: collapse;
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352 | }
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353 |
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354 | caption {
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355 | padding-top: $table-cell-padding-y;
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356 | padding-bottom: $table-cell-padding-y;
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357 | color: $table-caption-color;
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358 | text-align: left;
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359 | }
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360 |
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361 | // 1. Removes font-weight bold by inheriting
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362 | // 2. Matches default `<td>` alignment by inheriting `text-align`.
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363 | // 3. Fix alignment for Safari
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364 |
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365 | th {
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366 | font-weight: $table-th-font-weight; // 1
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367 | text-align: inherit; // 2
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368 | text-align: -webkit-match-parent; // 3
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369 | }
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370 |
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371 | thead,
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372 | tbody,
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373 | tfoot,
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374 | tr,
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375 | td,
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376 | th {
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377 | border-color: inherit;
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378 | border-style: solid;
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379 | border-width: 0;
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380 | }
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381 |
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382 |
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383 | // Forms
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384 | //
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385 | // 1. Allow labels to use `margin` for spacing.
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386 |
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387 | label {
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388 | display: inline-block; // 1
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389 | }
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390 |
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391 | // Remove the default `border-radius` that macOS Chrome adds.
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392 | // See https://github.com/twbs/bootstrap/issues/24093
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393 |
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394 | button {
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395 | // stylelint-disable-next-line property-disallowed-list
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396 | border-radius: 0;
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397 | }
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398 |
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399 | // Explicitly remove focus outline in Chromium when it shouldn't be
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400 | // visible (e.g. as result of mouse click or touch tap). It already
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401 | // should be doing this automatically, but seems to currently be
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402 | // confused and applies its very visible two-tone outline anyway.
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403 |
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404 | button:focus:not(:focus-visible) {
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405 | outline: 0;
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406 | }
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407 |
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408 | // 1. Remove the margin in Firefox and Safari
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409 |
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410 | input,
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411 | button,
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412 | select,
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413 | optgroup,
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414 | textarea {
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415 | margin: 0; // 1
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416 | font-family: inherit;
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417 | @include font-size(inherit);
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418 | line-height: inherit;
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419 | }
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420 |
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421 | // Remove the inheritance of text transform in Firefox
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422 | button,
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423 | select {
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424 | text-transform: none;
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425 | }
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426 | // Set the cursor for non-`<button>` buttons
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427 | //
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428 | // Details at https://github.com/twbs/bootstrap/pull/30562
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429 | [role="button"] {
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430 | cursor: pointer;
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431 | }
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432 |
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433 | select {
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434 | // Remove the inheritance of word-wrap in Safari.
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435 | // See https://github.com/twbs/bootstrap/issues/24990
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436 | word-wrap: normal;
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437 |
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438 | // Undo the opacity change from Chrome
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439 | &:disabled {
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440 | opacity: 1;
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441 | }
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442 | }
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443 |
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444 | // Remove the dropdown arrow in Chrome from inputs built with datalists.
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445 | // See https://stackoverflow.com/a/54997118
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446 |
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447 | [list]::-webkit-calendar-picker-indicator {
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448 | display: none;
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449 | }
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450 |
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451 | // 1. Prevent a WebKit bug where (2) destroys native `audio` and `video`
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452 | // controls in Android 4.
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453 | // 2. Correct the inability to style clickable types in iOS and Safari.
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454 | // 3. Opinionated: add "hand" cursor to non-disabled button elements.
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455 |
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456 | button,
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457 | [type="button"], // 1
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458 | [type="reset"],
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459 | [type="submit"] {
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460 | -webkit-appearance: button; // 2
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461 |
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462 | @if $enable-button-pointers {
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463 | &:not(:disabled) {
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464 | cursor: pointer; // 3
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465 | }
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466 | }
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467 | }
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468 |
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469 | // Remove inner border and padding from Firefox, but don't restore the outline like Normalize.
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470 |
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471 | ::-moz-focus-inner {
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472 | padding: 0;
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473 | border-style: none;
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474 | }
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475 |
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476 | // 1. Textareas should really only resize vertically so they don't break their (horizontal) containers.
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477 |
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478 | textarea {
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479 | resize: vertical; // 1
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480 | }
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481 |
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482 | // 1. Browsers set a default `min-width: min-content;` on fieldsets,
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483 | // unlike e.g. `<div>`s, which have `min-width: 0;` by default.
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484 | // So we reset that to ensure fieldsets behave more like a standard block element.
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485 | // See https://github.com/twbs/bootstrap/issues/12359
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486 | // and https://html.spec.whatwg.org/multipage/#the-fieldset-and-legend-elements
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487 | // 2. Reset the default outline behavior of fieldsets so they don't affect page layout.
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488 |
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489 | fieldset {
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490 | min-width: 0; // 1
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491 | padding: 0; // 2
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492 | margin: 0; // 2
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493 | border: 0; // 2
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494 | }
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495 |
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496 | // 1. By using `float: left`, the legend will behave like a block element.
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497 | // This way the border of a fieldset wraps around the legend if present.
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498 | // 2. Fix wrapping bug.
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499 | // See https://github.com/twbs/bootstrap/issues/29712
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500 |
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501 | legend {
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502 | float: left; // 1
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503 | width: 100%;
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504 | padding: 0;
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505 | margin-bottom: $legend-margin-bottom;
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506 | @include font-size($legend-font-size);
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507 | font-weight: $legend-font-weight;
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508 | line-height: inherit;
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509 |
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510 | + * {
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511 | clear: left; // 2
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512 | }
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513 | }
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514 |
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515 | // Fix height of inputs with a type of datetime-local, date, month, week, or time
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516 | // See https://github.com/twbs/bootstrap/issues/18842
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517 |
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518 | ::-webkit-datetime-edit-fields-wrapper,
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519 | ::-webkit-datetime-edit-text,
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520 | ::-webkit-datetime-edit-minute,
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521 | ::-webkit-datetime-edit-hour-field,
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522 | ::-webkit-datetime-edit-day-field,
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523 | ::-webkit-datetime-edit-month-field,
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524 | ::-webkit-datetime-edit-year-field {
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525 | padding: 0;
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526 | }
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527 |
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528 | ::-webkit-inner-spin-button {
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529 | height: auto;
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530 | }
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531 |
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532 | // 1. Correct the outline style in Safari.
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533 | // 2. This overrides the extra rounded corners on search inputs in iOS so that our
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534 | // `.form-control` class can properly style them. Note that this cannot simply
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535 | // be added to `.form-control` as it's not specific enough. For details, see
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536 | // https://github.com/twbs/bootstrap/issues/11586.
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537 |
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538 | [type="search"] {
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539 | outline-offset: -2px; // 1
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540 | -webkit-appearance: textfield; // 2
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541 | }
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542 |
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543 | // 1. A few input types should stay LTR
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544 | // See https://rtlstyling.com/posts/rtl-styling#form-inputs
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545 | // 2. RTL only output
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546 | // See https://rtlcss.com/learn/usage-guide/control-directives/#raw
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547 |
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548 | /* rtl:raw:
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549 | [type="tel"],
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550 | [type="url"],
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551 | [type="email"],
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552 | [type="number"] {
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553 | direction: ltr;
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554 | }
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555 | */
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556 |
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557 | // Remove the inner padding in Chrome and Safari on macOS.
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558 |
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559 | ::-webkit-search-decoration {
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560 | -webkit-appearance: none;
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561 | }
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562 |
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563 | // Remove padding around color pickers in webkit browsers
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564 |
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565 | ::-webkit-color-swatch-wrapper {
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566 | padding: 0;
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567 | }
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568 |
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569 |
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570 | // Inherit font family and line height for file input buttons
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571 |
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572 | ::file-selector-button {
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573 | font: inherit;
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574 | }
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575 |
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576 | // 1. Change font properties to `inherit`
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577 | // 2. Correct the inability to style clickable types in iOS and Safari.
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578 |
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579 | ::-webkit-file-upload-button {
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580 | font: inherit; // 1
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581 | -webkit-appearance: button; // 2
|
582 | }
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583 |
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584 | // Correct element displays
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585 |
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586 | output {
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587 | display: inline-block;
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588 | }
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589 |
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590 | // Remove border from iframe
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591 |
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592 | iframe {
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593 | border: 0;
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594 | }
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595 |
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596 | // Summary
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597 | //
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598 | // 1. Add the correct display in all browsers
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599 |
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600 | summary {
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601 | display: list-item; // 1
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602 | cursor: pointer;
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603 | }
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604 |
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605 |
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606 | // Progress
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607 | //
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608 | // Add the correct vertical alignment in Chrome, Firefox, and Opera.
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609 |
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610 | progress {
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611 | vertical-align: baseline;
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612 | }
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613 |
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614 |
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615 | // Hidden attribute
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616 | //
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617 | // Always hide an element with the `hidden` HTML attribute.
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618 |
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619 | [hidden] {
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620 | display: none ;
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621 | }
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