css 包含以下内容的浮动元素：http：//css-tricks.com/snippets/css/clear-fix/

Posted 2021-05-13

.group:after {
  content: "";
  display: table;
  clear: both;
}

/* or */

@mixin clearfix {
  &::after {
    content: '';
    display: table;
    clear: both;
  }
}