admin/public/plugins/element-plus/theme-chalk/src/anchor.scss

@use 'sass:map';

@use 'mixins/mixins' as *;
@use 'mixins/var' as *;
@use 'common/var' as *;

@include b(anchor) {
  @include set-component-css-var('anchor', $anchor);

  position: relative;
  background-color: getCssVar('anchor-bg-color');

  @include e(marker) {
    position: absolute;
    background-color: getCssVar('anchor-marker-bg-color');
    border-radius: 4px;
    opacity: 0;
    z-index: 0;
  }

  &.#{$namespace}-anchor--vertical {
    @include e(marker) {
      width: 4px;
      height: 14px;
      top: 8px;
      left: 0;
      transition: top 0.25s ease-in-out, opacity 0.25s;
    }

    @include e(list) {
      padding-left: getCssVar('anchor-padding-indent');
    }

    &.#{$namespace}-anchor--underline {
      &::before {
        position: absolute;
        left: 0;
        width: 2px;
        height: 100%;
        background-color: rgba(5, 5, 5, 0.06);
        content: '';
      }

      @include e(marker) {
        width: 2px;
        border-radius: unset;
      }
    }
  }

  &.#{$namespace}-anchor--horizontal {
    @include e(marker) {
      height: 2px;
      width: 20px;
      bottom: 0;
      transition: left 0.25s ease-in-out, opacity 0.25s, width 0.25s;
    }

    @include e(list) {
      display: flex;
      padding-bottom: 4px;

      @include e(item) {
        padding-left: 16px;

        &:first-child {
          padding-left: 0;
        }
      }
    }

    &.#{$namespace}-anchor--underline {
      &::before {
        position: absolute;
        bottom: 0;
        width: 100%;
        height: 2px;
        background-color: rgba(5, 5, 5, 0.06);
        content: '';
      }

      @include e(marker) {
        height: 2px;
        border-radius: unset;
      }
    }
  }
}