bootstrap 将页面分为三列
image.png
<div class="container"> <div class="row"> <section class="content-primary col-md-5">
</section>
<section class="content-secondary col-md-4">
</section>
<section class="content-tertiary col-md-3">
</section>
</div>
</div><!-- /.row -->
</div><!-- /.container -->举报
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