@anchor-prefix: ~"@{css-prefix}anchor"; .@{anchor-prefix}{ &-wrapper{ background-color: @body-background; overflow: auto; padding-left: 4px; margin-left: -4px; } &{ position: relative; padding-left: @anchor-border-width; &-ink { position: absolute; height: 100%; left: 0; top: 0; &:before { content: ' '; position: relative; width: @anchor-border-width; height: 100%; display: block; background-color: @border-color-split; margin: 0 auto; } &-ball { display: inline-block; position: absolute; width: 8px; height: 8px; border-radius: 8px; border: 2px solid @primary-color; background-color: @body-background; left: 50%; transition: top .3s ease-in-out; transform: translate(-50%, 2px); } } &.fixed &-ink &-ink-ball { display: none; } } &-link { padding: 8px 0 8px 16px; line-height: 1; &-title { display: block; position: relative; transition: all .3s; color: @text-color; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; margin-bottom: 8px; &:only-child { margin-bottom: 0; } } &-active > &-title { color: @primary-color; } } &-link &-link { padding-top: 6px; padding-bottom: 6px; } }