ant-design/components/menu/style/index.less

@import "../../style/themes/default";
@import "../../style/mixins/index";

@menu-prefix-cls: ~"@{ant-prefix}-menu";
@menu-inline-toplevel-item-height: 54px;
@menu-item-height: 40px;

// default theme
.@{menu-prefix-cls} {
  .reset-component;
  outline: none;
  margin-bottom: 0;
  padding-left: 0; // Override default ul/ol
  list-style: none;
  z-index: @zindex-dropdown;
  box-shadow: @box-shadow-base;
  background: @component-background;
  line-height: 46px;
  transition: background .3s, width .2s;

  ul,
  ol {
    list-style: none;
    margin: 0;
    padding: 0;
  }

  &-hidden {
    display: none;
  }

  &-item-group-list {
    margin: 0;
    padding: 0;
  }

  &-item-group-title {
    color: @text-color-secondary;
    font-size: @font-size-base;
    line-height: @line-height-base;
    padding: 8px 16px;
    transition: all .3s;
  }

  &-item,
  &-submenu,
  &-submenu-title {
    cursor: pointer;
  }
  &-submenu, &-submenu-inline {
    transition: border-color .3s @ease-in-out, background .3s @ease-in-out, padding .15s @ease-in-out;
  }
  &-item, &-submenu-title {
    transition: color .3s @ease-in-out, border-color .3s @ease-in-out, background .3s @ease-in-out, padding .15s @ease-in-out;
  }

  &-item:active,
  &-submenu-title:active {
    background: @item-active-bg;
  }

  &-submenu &-sub {
    cursor: initial;
    transition: background .3s @ease-in-out, padding .3s @ease-in-out;
  }

  &-item > a {
    display: block;
    color: @text-color;
    &:hover {
      color: @primary-color;
    }
    &:focus {
      text-decoration: none;
    }
    &:before {
      position: absolute;
      background-color: transparent;
      width: 100%;
      height: 100%;
      top: 0;
      left: 0;
      bottom: 0;
      right: 0;
      content: '';
    }
  }

  &-item-divider {
    height: 1px;
    overflow: hidden;
    background-color: @border-color-split;
    line-height: 0;
  }

  &-item:hover,
  &-item-active,
  &:not(&-inline) &-submenu-open,
  &-submenu-active,
  &-submenu-title:hover {
    color: @primary-color;
  }

  &:not(&-inline) &-submenu-open {
    z-index: @zindex-dropdown;
  }

  &-horizontal &-item,
  &-horizontal &-submenu {
    margin-top: -1px;
  }

  &-horizontal > &-item:hover,
  &-horizontal > &-item-active,
  &-horizontal > &-submenu &-submenu-title:hover {
    background-color: transparent;
  }

  &-item-selected {
    color: @primary-color;
    > a,
    > a:hover {
      color: @primary-color;
    }
  }

  &:not(&-horizontal) &-item-selected {
    background-color: @item-active-bg;
  }

  &-horizontal,
  &-inline,
  &-vertical {
    z-index: auto;
  }

  &-inline,
  &-vertical {
    border-right: @border-width-base @border-style-base @border-color-split;
    .@{menu-prefix-cls}-item {
      margin-left: -1px;
      left: 1px;
      position: relative;
      z-index: 1;
      &:after {
        content: "";
        position: absolute;
        right: 0;
        top: 0;
        bottom: 0;
        border-right: 3px solid @primary-color;
        transform: scaleY(.0001);
        opacity: 0;
        transition: transform .15s @ease-out, opacity .15s @ease-out;
      }
    }
  }

  &-vertical&-sub {
    border-right: 0;
    .@{menu-prefix-cls}-item {
      border-right: 0;
      margin-left: 0;
      left: 0;
      &:after {
        border-right: 0;
      }
    }
    > .@{menu-prefix-cls}-item:first-child {
      border-radius: @border-radius-base @border-radius-base 0 0;
    }
    > .@{menu-prefix-cls}-item:last-child,
    > .@{menu-prefix-cls}-item-group:last-child > .@{menu-prefix-cls}-item-group-list:last-child > .@{menu-prefix-cls}-item:last-child {
      border-radius: 0 0 @border-radius-base @border-radius-base;
    }
    > .@{menu-prefix-cls}-item:only-child {
      border-radius: @border-radius-base;
    }
  }

  &-inline {
    width: 100%;
    .@{menu-prefix-cls}-selected,
    .@{menu-prefix-cls}-item-selected {
      &:after {
        transition: transform .15s @ease-in-out, opacity .15s @ease-in-out;
        opacity: 1;
        transform: scaleY(1);
      }
    }
  }

  &-submenu-horizontal > & {
    top: 100%;
    left: 0;
    position: absolute;
    min-width: 100%;
    margin-top: 7px;
    z-index: @zindex-dropdown;
  }

  &-submenu-vertical {
    z-index: 1;
  }

  &-submenu-vertical > & {
    top: 0;
    left: 100%;
    position: absolute;
    min-width: 160px;
    margin-left: 4px;
    z-index: @zindex-dropdown;
  }

  &-item,
  &-submenu-title {
    margin: 0;
    padding: 0 20px;
    position: relative;
    display: block;
    white-space: nowrap;
    .@{iconfont-css-prefix} {
      min-width: 14px;
      margin-right: 8px;
      transition: font-size .15s @ease-out, margin .3s @ease-in-out;
      + span {
        transition: opacity .3s @ease-in-out, width .3s @ease-in-out;
        opacity: 1;
      }
    }
  }

  & > &-item-divider {
    height: 1px;
    margin: 1px 0;
    overflow: hidden;
    padding: 0;
    line-height: 0;
    background-color: @border-color-split;
  }

  &-submenu {
    position: relative;

    > .@{menu-prefix-cls} {
      background-color: @component-background;
      border-radius: @border-radius-base;
      &-submenu-title:after {
        transition: transform .3s @ease-in-out;
      }
    }

    &-vertical > .@{menu-prefix-cls}-submenu-title,
    &-inline > .@{menu-prefix-cls}-submenu-title {
      .@{menu-prefix-cls}-submenu-arrow {
        transition: transform .3s @ease-in-out;
        position: absolute;
        top: 50%;
        right: 16px;
        width: 10px;

        &:after,
        &:before {
          content: '';
          position: absolute;
          vertical-align: baseline;
          background: #fff;
          background-image: linear-gradient(to right, @text-color, @text-color);
          width: 6px;
          height: 1.5px;
          border-radius: 2px;
          transition: background .3s @ease-in-out, transform .3s @ease-in-out, top .3s @ease-in-out;
        }
      }
    }

    &-vertical > .@{menu-prefix-cls}-submenu-title .@{menu-prefix-cls}-submenu-arrow:before {
      transform: rotate(-45deg) translateY(2px);
    }
    &-vertical > .@{menu-prefix-cls}-submenu-title .@{menu-prefix-cls}-submenu-arrow:after {
      transform: rotate(45deg) translateY(-2px);
    }

    &-inline > .@{menu-prefix-cls}-submenu-title .@{menu-prefix-cls}-submenu-arrow:after {
      transform: rotate(45deg) translateX(-2px);
    }
    &-inline > .@{menu-prefix-cls}-submenu-title .@{menu-prefix-cls}-submenu-arrow:before {
      transform: rotate(-45deg) translateX(2px);
    }

    &-vertical > .@{menu-prefix-cls}-submenu-title:hover,
    &-inline > .@{menu-prefix-cls}-submenu-title:hover {
      .@{menu-prefix-cls}-submenu-arrow {
        &:after,
        &:before {
          background: linear-gradient(to right, @primary-color, @primary-color);
        }
      }
    }

    &-open {
      &.@{menu-prefix-cls}-submenu-inline > .@{menu-prefix-cls}-submenu-title .@{menu-prefix-cls}-submenu-arrow {
        transform: translateY(-2px);
        &:after {
          transform: rotate(-45deg) translateX(-2px);
        }
        &:before {
          transform: rotate(45deg) translateX(2px);
        }
      }
    }
  }

  &-vertical &-submenu-selected {
    color: @primary-color;
    > a {
      color: @primary-color;
    }
  }

  &-horizontal {
    border: 0;
    border-bottom: @border-width-base @border-style-base @border-color-split;
    box-shadow: none;
    z-index: 0;

    > .@{menu-prefix-cls}-item,
    > .@{menu-prefix-cls}-submenu {
      position: relative;
      top: 1px;
      float: left;
      border-bottom: 2px solid transparent;

      &:hover,
      &-active,
      &-open,
      &-selected {
        border-bottom: 2px solid @primary-color;
        color: @primary-color;
      }

      > a {
        display: block;
        color: @text-color;
        &:hover {
          color: @primary-color;
        }
      }
    }

    &:after {
      content: "\20";
      display: block;
      height: 0;
      clear: both;
    }
  }

  &-vertical,
  &-inline {
    .@{menu-prefix-cls}-item,
    .@{menu-prefix-cls}-submenu-title {
      padding: 0 16px;
      font-size: @font-size-base;
      line-height: @menu-item-height;
      height: @menu-item-height;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    > .@{menu-prefix-cls}-item,
    > .@{menu-prefix-cls}-submenu > .@{menu-prefix-cls}-submenu-title {
      line-height: @menu-inline-toplevel-item-height;
      height: @menu-inline-toplevel-item-height;
    }
  }

  &-inline-collapsed {
    width: @menu-collapsed-width;

    > .@{menu-prefix-cls}-item,
    > .@{menu-prefix-cls}-item-group > .@{menu-prefix-cls}-item-group-list > .@{menu-prefix-cls}-item,
    > .@{menu-prefix-cls}-submenu > .@{menu-prefix-cls}-submenu-title {
      left: 0;
      text-overflow: clip;
      padding: 0 (@menu-collapsed-width - 16px) / 2 !important;
      .@{menu-prefix-cls}-submenu-arrow {
        display: none;
      }
      .@{iconfont-css-prefix} {
        font-size: 16px;
        line-height: @menu-item-height;
        margin: 0;
        + span {
          max-width: 0;
          display: inline-block;
          opacity: 0;
        }
      }
    }
    &-tooltip {
      pointer-events: none;
      .@{iconfont-css-prefix} {
        display: none;
      }
      a {
        color: @text-color-dark;
      }
    }

    .@{menu-prefix-cls}-item-group-title {
      overflow: hidden;
      white-space: nowrap;
      text-overflow: ellipsis;
      padding-left: 4px;
      padding-right: 4px;
    }
  }

  &-item-group-list {
    .@{menu-prefix-cls}-item,
    .@{menu-prefix-cls}-submenu-title {
      padding: 0 16px 0 28px;
    }
  }

  &-vertical&-sub {
    padding: 0;
    transform-origin: 0 0;
    & > .@{menu-prefix-cls}-item,
    & > .@{menu-prefix-cls}-submenu {
      transform-origin: 0 0;
    }
  }

  &-root&-vertical,
  &-root&-inline {
    box-shadow: none;
  }

  &-sub&-inline {
    padding: 0;
    border: 0;
    box-shadow: none;
    border-radius: 0;
    & > .@{menu-prefix-cls}-item,
    & > .@{menu-prefix-cls}-submenu > .@{menu-prefix-cls}-submenu-title {
      line-height: @menu-item-height;
      height: @menu-item-height;
      list-style-type: disc;
      list-style-position: inside;
    }

    & .@{menu-prefix-cls}-item-group-title {
      padding-left: 32px;
    }
  }

  // Disabled state sets text to gray and nukes hover/tab effects
  &-item-disabled,
  &-submenu-disabled {
    color: @disabled-color !important;
    cursor: not-allowed;
    background: none;
    border-color: transparent !important;
    > a {
      color: @disabled-color !important;
      pointer-events: none;
    }
    > .@{menu-prefix-cls}-submenu-title {
      color: @disabled-color !important;
      cursor: not-allowed;
    }
  }
}

// dark theme
.@{menu-prefix-cls} {
  &-dark,
  &-dark &-sub {
    color: @text-color-secondary-dark;
    background: @menu-dark-bg;
    box-shadow: 0 2px 8px rgba(0, 0, 0, .45) inset;
    .@{menu-prefix-cls}-submenu-title .@{menu-prefix-cls}-submenu-arrow {
      &:after,
      &:before {
        background: @menu-dark-bg;
        background-image: linear-gradient(to right, @text-color-secondary-dark, @text-color-secondary-dark);
      }
    }
  }

  &-dark &-inline&-sub {
    background: @menu-dark-submenu-bg;
  }

  &-dark&-horizontal {
    border-bottom-color: @menu-dark-bg;
  }

  &-dark&-horizontal > &-item,
  &-dark&-horizontal > &-submenu {
    border-color: @menu-dark-bg;
    border-bottom: 0;
  }

  &-dark &-item,
  &-dark &-item-group-title,
  &-dark &-item > a {
    color: @text-color-secondary-dark;
  }

  &-dark&-inline,
  &-dark&-vertical {
    border-right: 0;
  }

  &-dark&-inline &-item,
  &-dark&-vertical &-item {
    border-right: 0;
    margin-left: 0;
    left: 0;
    &:after {
      border-right: 0;
    }
  }

  &-dark &-item:hover,
  &-dark &-item-active,
  &-dark &-submenu-active,
  &-dark:not(&-inline) &-submenu-open,
  &-dark &-submenu-selected,
  &-dark &-submenu-title:hover {
    background-color: transparent;
    color: #fff;
    > a {
      color: #fff;
    }
    .@{menu-prefix-cls}-submenu-title,
    .@{menu-prefix-cls}-submenu-title:hover {
      .@{menu-prefix-cls}-submenu-arrow {
        &:after,
        &:before {
          background-image: linear-gradient(to right, #fff, #fff);
        }
      }
    }
  }

  &-dark &-item-selected {
    border-right: 0;
    color: #fff;
    &:after {
      border-right: 0;
    }
    > a,
    > a:hover {
      color: #fff;
    }
  }

  &&-dark &-item-selected {
    background-color: @primary-color;
  }

  // Disabled state sets text to dark gray and nukes hover/tab effects
  &-dark &-item-disabled,
  &-dark &-submenu-disabled {
    &,
    > a {
      opacity: 0.8;
      color: @disabled-color-dark !important;
    }
    > .@{menu-prefix-cls}-submenu-title {
      color: @disabled-color-dark !important;
    }
  }
}