<div class="container">
  <div class="left"></div>
  <div class="right">1231212312312312123122342343122342343122342343122342343122342343<br>破坏掉词组字符串的默认格式需要使用 word-break 。这里的 height: 100% 无效。</div>
</div>
html, body {height: 100%;}
.container {height: 100%;}
.left {float: left; width: 80px; height: 200px; background-color: #4688f5;}
.right {display: table-cell; width: 2000px; background-color: yellow; word-break: break-all;}

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