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