.app-dr-tab { .dr-tab-item { cursor: pointer; padding: 0 16px; &.is-active, &:hover { color: #2d8cf0; } &.is-active { position: relative; } &.is-active::after { content: ''; width: 100%; height: 2px; background: #2d8cf0; position: absolute; left: 0px; bottom: 0px; } } } // this is less