accounts-frontend/packages/app/components/ui/form/dropdown.scss

@import '~app/components/ui/colors.scss';
@import '~app/components/ui/fonts.scss';

$dropdownPadding: 15px;

@mixin dropdown-theme($themeName, $backgroundColor) {
  .#{$themeName} {
    composes: dropdown;

    background-color: $backgroundColor;

    .menuItem:hover,
    &:hover {
      background-color: lighter($backgroundColor);
    }

    &:active,
    &.opened {
      background-color: darker($backgroundColor);
    }
  }
}

.dropdown {
  display: inline-block;
  box-sizing: border-box;
  height: 50px;
  // 28px - ширина иконки при заданном размере шрифта
  padding: 0 ($dropdownPadding * 2 + 28px) 0 $dropdownPadding;
  position: relative;

  font-family: $font-family-title;
  color: $defaultButtonTextColor;
  font-size: 18px;
  line-height: 50px;
  text-decoration: none;
  cursor: pointer;

  transition: background-color 0.25s;

  &:focus {
    outline: none;
  }
}

.label {
  display: block;
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
}

.opened {
}

.toggleIcon {
  composes: selecter from '~app/components/ui/icons.scss';

  position: absolute;
  right: $dropdownPadding;
  top: 16px;
  font-size: 17px;
  transition: right 0.3s cubic-bezier(0.23, 1, 0.32, 1); // easeOutQuint

  .dropdown:hover & {
    right: $dropdownPadding - 5px;
  }

  .dropdown:active &,
  .dropdown.opened & {
    right: $dropdownPadding + 5px;
  }
}

.block {
  display: block;
  width: 100%;

  .menu {
    width: 100%;
  }
}

.menu {
  position: absolute;
  top: 60px;
  left: 0;
  z-index: 10;

  width: 120%;

  background: #fff;
  border: 1px solid #ddd;

  transition: 0.5s ease;
  transition-property: opacity, visibility;
  opacity: 0;
  visibility: hidden;

  .dropdown.opened & {
    opacity: 1;
    visibility: visible;
  }
}

.menuItem {
  composes: label;

  height: 50px;
  padding: 0 13px;
  overflow: hidden;
  text-overflow: ellipsis;

  color: #444;
  line-height: 50px;
  font-size: 18px;
  font-family: $font-family-title;

  border-bottom: 1px solid #ebe8df;
  cursor: pointer;

  transition: 0.25s;

  &:hover {
    color: #fff;
  }
}

@include dropdown-theme('green', $green);