app/node_modules/ng-zorro-antd/tabs/style/card.less

@import '../../style/themes/index';
@import '../../style/mixins/index';

@tab-prefix-cls: ~'@{ant-prefix}-tabs';

.@{tab-prefix-cls}-card {
  > .@{tab-prefix-cls}-nav,
  > div > .@{tab-prefix-cls}-nav {
    .@{tab-prefix-cls}-tab {
      margin: 0;
      padding: @tabs-card-horizontal-padding;
      background: @tabs-card-head-background;
      border: @border-width-base @border-style-base @border-color-split;
      transition: all @animation-duration-slow @ease-in-out;

      &-active {
        color: @tabs-card-active-color;
        background: @component-background;
      }
    }

    .@{tab-prefix-cls}-ink-bar {
      visibility: hidden;
    }
  }

  // ========================== Top & Bottom ==========================
  &.@{tab-prefix-cls}-top,
  &.@{tab-prefix-cls}-bottom {
    > .@{tab-prefix-cls}-nav,
    > div > .@{tab-prefix-cls}-nav {
      .@{tab-prefix-cls}-tab + .@{tab-prefix-cls}-tab {
        margin-left: @tabs-card-gutter;
      }
    }
  }

  &.@{tab-prefix-cls}-top {
    > .@{tab-prefix-cls}-nav,
    > div > .@{tab-prefix-cls}-nav {
      .@{tab-prefix-cls}-tab {
        border-radius: @border-radius-base @border-radius-base 0 0;

        &-active {
          border-bottom-color: @component-background;
        }
      }
    }
  }
  &.@{tab-prefix-cls}-bottom {
    > .@{tab-prefix-cls}-nav,
    > div > .@{tab-prefix-cls}-nav {
      .@{tab-prefix-cls}-tab {
        border-radius: 0 0 @border-radius-base @border-radius-base;

        &-active {
          border-top-color: @component-background;
        }
      }
    }
  }

  // ========================== Left & Right ==========================
  &.@{tab-prefix-cls}-left,
  &.@{tab-prefix-cls}-right {
    > .@{tab-prefix-cls}-nav,
    > div > .@{tab-prefix-cls}-nav {
      .@{tab-prefix-cls}-tab + .@{tab-prefix-cls}-tab {
        margin-top: @tabs-card-gutter;
      }
    }
  }

  &.@{tab-prefix-cls}-left {
    > .@{tab-prefix-cls}-nav,
    > div > .@{tab-prefix-cls}-nav {
      .@{tab-prefix-cls}-tab {
        border-radius: @border-radius-base 0 0 @border-radius-base;

        &-active {
          border-right-color: @component-background;
        }
      }
    }
  }
  &.@{tab-prefix-cls}-right {
    > .@{tab-prefix-cls}-nav,
    > div > .@{tab-prefix-cls}-nav {
      .@{tab-prefix-cls}-tab {
        border-radius: 0 @border-radius-base @border-radius-base 0;

        &-active {
          border-left-color: @component-background;
        }
      }
    }
  }
}