qq_风一样飘过_0
2017-02-09 18:18
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把<div class="col-sm-4"> 改成<div class="col-sm-6 col-sm-offset-3">
首先,col-sm-4 无法放开 二维码,其次 因为Bootstrap 是12列栅格,内容为6列 ,左右各3列,就为居中
玩转Bootstrap(基础)
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