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IE hack? forget it! #44

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imsobear opened this issue Aug 26, 2014 · 0 comments
Closed

IE hack? forget it! #44

imsobear opened this issue Aug 26, 2014 · 0 comments
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css 技术

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@imsobear
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IE hack? forget it!

IE hack，每个前端同学都避免不了的东西，你应该很了解下面的写法：

color: red\9\0; // ie9
color: red\0;  // ie8 & 9
*color: red;  // ie6&7
_color: red;  // ie6

每次碰到不同的 bug 我们总要考虑用那种 hack 处理，今天在 less 中写了一个 color: red\0 这样的 hack 时，打包失败，理论上这是 gulp-less 的 bug，不过问题是在这个 bug 之下我该怎么继续 hack，思考之后觉得这样的 hack 真的是烦透了，这样的解决方案也一定是不够靠谱的，相比来说，IE 条件注释会靠谱很多，那么借助 IE 的条件注释，hack 这件事简单了许多，如下：

<!--[if lt IE 7]>  <html class="ie ie6 lte9 lte8 lte7"> <![endif]-->
<!--[if IE 7]>     <html class="ie ie7 lte9 lte8 lte7"> <![endif]-->
<!--[if IE 8]>     <html class="ie ie8 lte9 lte8"> <![endif]-->
<!--[if IE 9]>     <html class="ie ie9 lte9"> <![endif]-->
<!--[if gt IE 9]>  <html> <![endif]-->
<!--[if !IE]><!--> <html> <!--<![endif]-->

如此的话，虽说 html 的源文件稍微有点恶心，好在 IE 条件注释在其他浏览器压根不会显示，所以这点恶心是可以接受的，之后我们再写 IE hack 就简单了许多，没有了奇葩的语法，csshint 也不会检测出什么问题，hack 写起来更加直观。

所以，忘掉那一堆 IE hack 吧！

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