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              <div class="wrap">
  <h1>run-in box</h1>
  <p>run-in框的行为如下:</p>
  <ol>
    <li>如果run-in框包含一个块框,那么run-in框变为块框。</li>
    <li>如果run-in框的后继兄弟元素为块框(非浮动,非绝对定位),那么run-in框变为该块框的第一个行内框。run-in不能插入本身为run-in的块中,也不能插入块中已有run-in的块中。</li>
    <li>否则,run-in框变为块框。</li>
  </ol>
  <p>浏览器支持:IE8+,chrome(unsupport)</p>
  <h2>case 1</h2>
  <div class="run-in-box">
    <p>some text...</p>
  </div>
  <div>some other text....</div>
  <h2>case 2</h2>
  <h3 class="run-in-box">A run-in heading.</h3>
  <p>And a paragraph of text that follows it.</p>
  <h2>case 3</h2>
  <h3 class="run-in-box">A run-in heading.</h3>
  <span>And a span of text that follows it.</span>
</div>
            
          
!
            
              .wrap {
  width: 800px;
  margin: 0 auto;
}

.run-in-box {
  display: run-in;
}

li {
  line-height: 1.6;
}

h2 {
  margin-top: 60px;
}
            
          
!
999px
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