css - 我如何用 sass 简化这个 css？

Question

我有一个 css 文件，我想用 sass 简化它，一些片段如下:

.slick-prev, .slick-next {
    height: 30px !important;
}
.slick-prev:before, .slick-next:before {
    color: #fff !important;
    font-size: 30px !important;
}
.slick-prev:before {
    content: "\f104" !important;
    font-family: "FontAwesome" !important;
}
.slick-next:before {
    content: "\f105" !important;
    font-family: "FontAwesome" !important;
}

所以，区别只在于content: "\f104"，所以我试着简化一下:

.slick-prev, .slick-next {
    height: 30px !important;

    &:before {
        color: #fff important;
        font-size: 30px !important;

        // how can I write here?
    }
}

如何判断parent是.slick-next:before还是.slick-prev:before？

Answer 1

How can I judge the parent is .slick-next:before or .slick-prev:before?

你不能。

这是尽可能简化的:

.slick-prev, .slick-next {
    height: 30px !important;

    &:before {
        color: #fff !important;
        font-size: 30px !important;
        font-family: "FontAwesome" !important;
    }
}
.slick-prev:before {
    content: "\f104" !important;
}
.slick-next:before {
    content: "\f105" !important;
}