这个问题可以在这里看到：http://jsfiddle.net/68qxE/2/(只是一定要扩大结果的宽度)，但如果你愿意：

这是我的HTML：

<div class="container">
  <div class="post-Box col-lg-4 col-md-4 col-sm-4">
    <a href="/posts/1"><img class="img-responsive img-thumbnail" src="http://s3.amazonaws.com/s3.babblin.gs/posts/images/000/000/260/large/tumblr_msnl3ayMxU1rsnzy2o5_1280.jpg" /></a>
  </div>
  <div class="post-Box col-lg-4 col-md-4 col-sm-4">
    <a href="/posts/2"><img class="img-responsive img-thumbnail" src="http://s3.amazonaws.com/s3.babblin.gs/posts/images/000/000/257/large/24ekOAH.jpg" /></a>
  </div>
  <div class="post-Box col-lg-4 col-md-4 col-sm-4">
    <a href="/posts/3"><img class="img-responsive img-thumbnail" src="http://s3.amazonaws.com/s3.babblin.gs/posts/images/000/000/248/large/tumblr_mqeom2a2oU1qbltjyo2_1280.jpg" /></a>
  </div>
  <div class="post-Box col-lg-4 col-md-4 col-sm-4">
    <a href="/posts/4"><img class="img-responsive img-thumbnail" src="http://s3.amazonaws.com/s3.babblin.gs/posts/images/000/000/244/large/3CjBFlN.jpg" /></a>
  </div>
  <div class="post-Box col-lg-4 col-md-4 col-sm-4">
    <a href="/posts/5"><img class="img-responsive img-thumbnail" src="http://s3.amazonaws.com/s3.babblin.gs/posts/images/000/000/241/large/OoRsR42.gif" /></a>
  </div>
</div>

这是我的Javascript

$(document).ready(function(){
  var $container = $('.container');
 
  $container.imagesLoaded( function() {
    $container.masonry({
      itemSelector        : '.post-Box',columnWidth         : '.post-Box',transitionDuration  : 0
    });
  });
});

这里是我的CSS：

.img-thumbnail {
  padding: 10px;
}
 
.post-Box {
  margin: 15px 0 15px 0;
}

现在当页面最初加载时，在任何javascript发生之前，col-lg-4的宽度为350px。但是，一旦javascript被调用，collg-4的宽度就会跳到360px，我相信这是从3列布局到2列布局的原因。