console 命令行工具 X clear

console

<div>
  <div class="left">
  </div>
  <div class="right">
  </div>
</div>

.left {
  float: left;
  width: 200px;
  height: 600px;
  background: pink;
}

.right {
  margin-left: 200px;
  height: 600px;
  background: lightblue;
}