关于CSS 通配符* 是否浪费资源?_html/css

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关于CSS 通配符* 是否浪费资源?_html/css_WEB-ITnose

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Jun 21, 2016 am 09:02 AM

我看了很多国内的资料,说不要用 * 来重置css, 请问真的会占用浏览器很多资源吗?
既然占用资源,那为什么bootstrap 等几乎所有前端框架都会进行
* {
  -webkit-box-sizing: border-box;
     -moz-box-sizing: border-box;
          box-sizing: border-box;
}
*:before,
*:after {
  -webkit-box-sizing: border-box;
     -moz-box-sizing: border-box;
          box-sizing: border-box;
}
这不是打脸吗? 我不了解浏览器的渲染模式;

请问 * 全局匹配真的会出现占用资源过高的问题吗

回复讨论(解决方案)

现在的机器配置我不觉得有什么问题

当然最主要就是你需要吗需要定义一个＊的样式吗

*杀伤力太大了

当大部分样式需要同样去设置的时候，用个通配符跟一个个去写，性能差别不大的情况下，又何苦要增加自己的工作量呢，这不是找虐吗

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