css - 如何创建支持内容 block 的 Sass mixin 别名？

Question

如何为同一个 mixin 定义多个名称，并支持内容 block ？

定义

@mixin desktop-breakpoint {
   @media only screen and (min-width: 769px) {
      @content;
   }
}

@mixin large-breakpoint {
   @include desktop-breakpoint;
}

使用

.my-class {
   font-size: small;

   @include desktop-breakpoint {
      font-size: big;
   }
}

.my-other-class {
   color: red;

   @include large-breakpoint {
      color: blue;
   }
}

错误消息

Mixin "large-breakpoint" does not accept a content block.

Answer 1

在 large-breakpoint mixin 中使用 @includedesktop-breakpoint 时，您没有传递任何 @content。这样做将修复您的编译错误:

@mixin large-breakpoint {
   // Remember to pass content received by mixin to @include
   @include desktop-breakpoint {
     @content;
   }
}

然后你的 CSS 将按照预期正确编译:

.my-class {
  font-size: small;
}
@media only screen and (min-width: 769px) {
  .my-class {
    font-size: big;
  }
}

.my-other-class {
  color: red;
}
@media only screen and (min-width: 769px) {
  .my-other-class {
    color: blue;
  }
}

查看基于您修改后的代码的概念验证示例:https://www.sassmeister.com/gist/3109af060293eed0b89a22c27fa20527