<div class="sn-news-small mb18">
  <a href="javascript:void(0);" target="_blank" class="sn-news-smallimg fl"><img src="/images/default_blank/left-03.jpg" width="85" height="85" alt=""/></a>
  <h4><div class="sn-title-wrap"><a href="javascript:void(0);" target="_blank" class="h4-title fl mt10">帖子标题</a><span class="title-ellipsis"></span></div></h4>
  <span class="txt-grey fl">时间</span>
  <div class="cl"></div>
</div>
<div class="sn-news-small mb18">
  <a href="javascript:void(0);" target="_blank" class="sn-news-smallimg fl"><img src="/images/default_blank/left-03.jpg" width="85" height="85" alt=""/></a>
  <h4><div class="sn-title-wrap"><a href="javascript:void(0);" target="_blank" class="h4-title fl mt10">帖子标题</a><span class="title-ellipsis"></span></div></h4>
  <span class="txt-grey fl">时间</span>
  <div class="cl"></div>
</div>
  <div class="sn-news-small mb18">
    <a href="javascript:void(0);" target="_blank" class="sn-news-smallimg fl"><img src="/images/default_blank/left-03.jpg" width="85" height="85" alt=""/></a>
    <h4><div class="sn-title-wrap"><a href="javascript:void(0);" target="_blank" class="h4-title fl mt10">帖子标题</a><span class="title-ellipsis"></span></div></h4>
    <span class="txt-grey fl">时间</span>
    <div class="cl"></div>
  </div>
  <div class="sn-news-small ">
    <a href="javascript:void(0);" target="_blank" class="sn-news-smallimg fl"><img src="/images/default_blank/left-03.jpg" width="85" height="85" alt=""/></a>
    <h4><div class="sn-title-wrap"><a href="javascript:void(0);" target="_blank" class="h4-title fl mt10">帖子标题</a><span class="title-ellipsis"></span></div></h4>
    <span class="txt-grey fl">时间</span>
    <div class="cl"></div>
</div>

<script>
    $(document).ready(function(){
        $(".h4-title").each(function(){
            var titleHeight = $(this).height();
            if (titleHeight > 52){
                $(this).next().show();
            }
            else {
                $(this).next().hide();
            }
        });
    });
</script>