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fixed 宽度问题_html/css_WEB-ITnose

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Jun 24, 2016 am 11:32 AM

当没有设置fixed时，原来的div是自适应上级的宽度（我没有设置具体的宽度的），可设置为fixed是变成屏幕宽度了，我想要的是设置fixed时，如何适应上级的？不行的话，我只能去设置宽度了。。

回复讨论(解决方案)

设置宽度

设置 fixed的元素会脱离文档流独立工作，此时这个元素是相对于整个页面的，宽度自然也就是页面的宽度，所以你需要重新计算你的div宽度达到你想要的。

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