如何通过 CSS 实现一个左边固定宽度、右边自适应的两列布局_html/css_WEB-ITnose
最近在百度 IFE 训练营中看见的一道题目:
用两种不同的方法来实现一个两列布局,其中左侧部分宽度固定、右侧部分宽度随浏览器宽度的变化而自适应变化
个人总结出如下三种实现思路:
- 通过绝对定位实现
See the Pen absolute-two-column by xal821792703 (@honoka) on CodePen.
注意点如下:
2. 通过浮动实现
See the Pen float-two-column by xal821792703 (@honoka) on CodePen.
注意点如下:
3. 通过 BFC 规则实现
See the Pen bfc-two-column by xal821792703 (@honoka) on CodePen.
此处便不花大量篇幅介绍 BFC 了,可以参见下面两篇博文:
深入理解BFC和Margin Collapse
CSS之BFC详解
简而言之,BFC 可以帮助我们解决布局中左边元素脱离文档流后,右边元素的左外边距会触碰到包含块容器的左外边框的问题,就像下图:
现在我们仅需注意将 div-b 设定为 BFC 元素即可。
以上便是个人总结出的三种两列布局方法,欢迎交流。
另外如果对百度 IFE 前端训练营感兴趣,欢迎来我的 repo 看看(笑)

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