<div class="col-lg-3">
<div>left</div>
</div>
< ;div class="col-lg-9">
<div>right</div>
</div>
this or so The layout does not take effect in Google Chrome and still displays the top and bottom layout. Even if I download the courseware source code, it does not take effect, but QQ browser...
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qq browser uses Google’s kernel, check whether your Google browser has cache enabled, or clear your browser cache directly
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
