vue-vben-admin/src/layouts/default/tabs/index.less

@prefix-cls: ~'@{namespace}-multiple-tabs';

.@{prefix-cls} {
  z-index: 10;
  height: @multiple-height + 2;
  line-height: @multiple-height + 2;
  background: @white;
  box-shadow: 0 1px 2px 0 rgba(29, 35, 41, 0.05);

  .ant-tabs-small {
    height: @multiple-height;
  }

  .ant-tabs.ant-tabs-card {
    .ant-tabs-card-bar {
      height: @multiple-height;
      margin: 0;
      background: @white;
      border: 0;
      box-shadow: none;

      .ant-tabs-nav-container {
        height: @multiple-height;
        padding-top: 2px;
      }

      .ant-tabs-tab {
        height: calc(@multiple-height - 2px);
        padding-right: 12px;
        line-height: calc(@multiple-height - 2px);
        color: @text-color-call-out;
        background: @white;
        border: 1px solid darken(@border-color-light, 6%);
        transition: none;

        // &:not(.ant-tabs-tab-active)::before {
        //   position: absolute;
        //   top: -1px;
        //   left: 50%;
        //   width: 100%;
        //   height: 2px;
        //   background-color: @primary-color;
        //   content: '';
        //   opacity: 0;
        //   transform: translate(-50%, 0) scaleX(0);
        //   transform-origin: center;
        //   transition: none;
        // }

        &:hover {
          .ant-tabs-close-x {
            opacity: 1;
          }

          // &:not(.ant-tabs-tab-active)::before {
          //   opacity: 1;
          //   transform: translate(-50%, 0) scaleX(1);
          //   transition: all 0.3s ease-in-out;
          // }
        }

        .ant-tabs-close-x {
          width: 8px;
          height: 12px;
          font-size: 12px;
          color: inherit;
          opacity: 0;
          transition: none;

          &:hover {
            svg {
              width: 0.8em;
            }
          }
        }

        > div {
          display: flex;
          justify-content: center;
          align-items: center;
        }

        svg {
          fill: @text-color-base;
        }
      }

      .ant-tabs-tab-active {
        position: relative;
        padding-left: 26px;
        color: @white;
        background: fade(@primary-color, 100%);
        border: 0;
        transition: none;

        &::before {
          position: absolute;
          top: calc(50% - 3px);
          left: 8px;
          width: 6px;
          height: 6px;
          background: #fff;
          border-radius: 50%;
          content: '';
          transition: none;
        }

        .ant-tabs-close-x {
          opacity: 1;
        }

        svg {
          width: 0.7em;
          fill: @white;
        }
      }
    }

    .ant-tabs-nav > div:nth-child(1) {
      padding: 0 6px;

      .ant-tabs-tab {
        margin-right: 3px !important;
      }
    }
  }

  .ant-tabs-tab:not(.ant-tabs-tab-active) {
    .anticon-close {
      font-size: 12px;

      svg {
        width: 0.6em;
      }
    }
  }

  .ant-tabs-extra-content {
    margin-top: 2px;
    line-height: @multiple-height !important;
  }

  .ant-dropdown-trigger {
    display: inline-flex;
  }

  &--hide-close {
    .ant-tabs-close-x {
      opacity: 0 !important;
    }
  }

  &-content {
    &__extra-quick,
    &__extra-redo,
    &__extra-fold {
      display: inline-block;
      width: 36px;
      height: @multiple-height;
      line-height: @multiple-height;
      color: #666;
      text-align: center;
      cursor: pointer;
      border-left: 1px solid #eee;

      &:hover {
        color: @text-color-base;
      }

      span[role='img'] {
        transform: rotate(90deg);
      }
    }

    &__extra-redo {
      span[role='img'] {
        transform: rotate(0deg);
      }
    }

    &__info {
      display: inline-block;
      width: 100%;
      height: @multiple-height - 2;
      padding-left: 0;
      margin-left: -10px;
      font-size: 12px;
      cursor: pointer;
      user-select: none;
    }
  }
}