scss 简单的“Hocus”Sass @mixin：悬停和：聚焦伪。使它们更容易编写，您永远不会忘记同时指定它们。

Posted 2021-05-18

@mixin hocus {
    &:hover,
    &:focus {
        @content;
        }
    }

// Before
E {
    &:hover,
    &:focus {
        color:whatever;
        }
    }

// After
E {
    @include hocus {
        color:whatever;
        }
    }