.hide {
  display: none; }

.d-menu-wrap {
  display: inline-block;
  text-align: center;
  vertical-align: top;
  margin: 10px; }

.unactive .menu-wrap {
  height: 0;
  overflow: hidden; }

.d-menu-mask {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0; }

.d-menu-wrap .menu-wrap {
  position: relative;
  z-index: 1;
  margin-top: 11px; }
  .d-menu-wrap .menu-wrap:before, .d-menu-wrap .menu-wrap:after {
    display: block;
    content: " ";
    position: absolute;
    left: 50%;
    width: 0;
    height: 0;
    border-style: solid;
    border-color: transparent;
    border-top: 0;
    margin-left: -10px; }
  .d-menu-wrap .menu-wrap:before {
    top: -10px;
    border-width: 10px;
    border-bottom-color: rgba(0, 0, 0, 0.239216); }
  .d-menu-wrap .menu-wrap:after {
    top: -9px;
    border-width: 10px;
    border-bottom-color: #fff; }

.menu-wrap {
  display: inline-block;
  box-shadow: rgba(0, 0, 0, 0.117647) 0px 1px 6px, rgba(0, 0, 0, 0.239216) 0px 1px 4px;
  border-radius: 2px; }

.menu-item {
  padding: 2px 12px; }

.menu-item-selected {
  background: #ccc; }

.btn {
  outline: none;
  background: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  border: none;
  padding: 0;
  border-radius: 2px;
  box-shadow: 0 1px 6px rgba(0, 0, 0, 0.12), 0 1px 4px rgba(0, 0, 0, 0.24);
  background: #e6e6e6;
  line-height: 30px;
  margin: 16px;
  font-size: 17px; }

.btn-inner:hover, btn[disabled] {
  background-color: rgba(255, 255, 255, 0.4); }

.btn-label {
  padding: 0 8px; }

.icon-btn-wrap {
  position: relative;
  display: inline-block;
  margin: 10px; }

.tooltip {
  position: absolute;
  left: -22px;
  bottom: -28px;
  white-space: nowrap;
  box-shadow: 0px 2px 8px #ccc;
  padding: 4px; }

.link-btn {
  width: 100%;
  height: 100%; }

/**************upload-btn******************/
.upload-btn {
  position: relative; }
  .upload-btn input[type="file"] {
    position: absolute;
    width: 100%;
    height: 100%;
    left: 0;
    top: 0;
    opacity: 0; }

body {
  margin: 0; }

header {
  text-align: center;
  font-size: 24px;
  line-height: 32px;
  margin-bottom: 24px; }

#main {
  text-align: center; }

.icon-btn-wrap {
  margin: 20px;
  color: #888; }
  .icon-btn-wrap.hovered {
    color: #000; }