src/styles/components/carousel.less

@carousel-prefix-cls: ~"@{css-prefix}carousel";
@carousel-item-prefix-cls: ~"@{css-prefix}carousel-item";
.@{carousel-prefix-cls} {
    position: relative;
    display: block;
    box-sizing: border-box;
    user-select: none;
    touch-action: pan-y;
    -webkit-tap-highlight-color: transparent;
    &-track, &-list {
        transform: translate3d(0, 0, 0);
    }
    &-list {
        position: relative;
        display: block;
        overflow: hidden;
        margin: 0;
        padding: 0;
    }
    &-track {
        position: relative;
        top: 0;
        left: 0;
        display: block;
        overflow: hidden;
        z-index: 1;
    }
    &-item {
        float: left;
        height: 100%;
        min-height: 1px;
        display: block;
    }
    &-arrow {
        border: none;
        outline: none;
        padding: 0;
        margin: 0;
        width: 36px;
        height: 36px;
        border-radius: 50%;
        cursor: pointer;
        display: none;
        position: absolute;
        top: 50%;
        z-index: 10;
        transform: translateY(-50%);
        transition: .3s;
        background-color: rgba(31, 45, 61, .11);
        color: #fff;
        &:hover {
            background-color: rgba(31, 45, 61, 0.5);
        }
        text-align: center;
        font-size: 1em;
        font-family: inherit;
        line-height: inherit;
        & > * {
            vertical-align: baseline;
        }
        &.left {
            left: 16px;
        }
        &.right {
            right: 16px;
        }
        &-always {
            display: inherit;
        }
        &-hover {
            display: inherit;
            opacity: 0;
        }
    }
    &:hover &-arrow-hover {
        opacity: 1;
    }
    &-dots {
        z-index: 10;
        @padding: 7px;
        display: none;
        position: relative;
        &-inside {
            display: block;
            position: absolute;
            bottom: 10px - @padding;
        }
        &-outside {
            display: block;
            margin-top: 10px - @padding;
        }
        list-style: none;
        text-align: center;
        padding: 0;
        width: 100%;
        height: 3px + @padding * 2;
        li {
            position: relative;
            display: inline-block;
            vertical-align: top;
            text-align: center;
            margin: 0 2px;
            padding: @padding 0;
            cursor: pointer;
            button {
                border: 0;
                cursor: pointer;
                background: #8391a5;
                opacity: 0.3;
                display: block;
                width: 16px;
                height: 3px;
                border-radius: 1px;
                outline: none;
                font-size: 0;
                color: transparent;
                -webkit-transition: all .5s;
                transition: all .5s;
            }
            &:hover > button {
                opacity: 0.7;
            }
            &.@{carousel-prefix-cls}-active > button {
                opacity: 1;
                width: 24px;
            }
        }
    }
}