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chrome中不可见字符引发的float问题_html/css_WEB-ITnose

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Release: 2016-06-24 11:23:56
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  起因是刷知乎时碰到这么个问题:https://www.zhihu.com/question/41400503

  问题代码如下:

<!DOCTYPE html><html lang="zh-CN"><head><meta charset="utf-8"><style>    .cf {        zoom: 1;    }    .cf:after {        clear: both;        content: "";        display: block;    }	.cf:before {	    content: "";	  display: block;	}    .out {        width: 730px;        border: 1px solid #ccc;    }    .left {        float: left;        width: 90px;        height: 20px;        margin: 3px 5px;        background: #D7E9F7;    }    .other {        width: 10px;        background: red;    }</style></head><body>    <div class="out cf">        <div class="left"></div>        <div class="left"></div>        <div class="left"></div>        <div class="left"></div>        <div class="left"></div>        <div class="left"></div>        <div class="left"></div>        <div class="left"></div>        <div class="left"></div>        <div class="left"></div>        <div class="left"></div>        <div class="left"></div>        <div class="left"></div>        <div class="left other"></div>    </div></body></html>  
Copy after login

  

  在chrome中,最后一个.other会float到第一行的末尾:

  最开始认为是before伪类的问题:

  给出的解决方案是让提问者删掉.cf的before伪类,然后.other正常float到第二行最后。

  后来细细想了下,没有听说过类似的问题,搜了下也没有发现类似案例,怀疑问题判断有误。copy提问者代码到sublime里面进行排错测试,习惯性把css代码compact,.other居然正常float。

  恰巧前几天见过一个不可见字符导致页面显示错误的问题,灵光一闪地往这方面怀疑起来,设置sublime显示空白:"draw_white_space": "all"。果然有问题:

  

  改用UltraEdit的16进制视图打开:

  

  在display前面有两个编码为e38080的不可见字符,查编码对照表:

  

  

  最近状态不佳,一直无所事事打酱油,碰到个问题不断往深处探究,感觉真是比打DOTA还爽!!!

 

 

 

     

 

 

UltraEdit 

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