console 命令行工具 X clear

console

document.querySelector("div").onclick = function() {
  this.className = "";
  setTimeout(() => {
    this.className = "move";
  },
  0)
}

<div>
  <img src=http://image.99114.com/upfile/pro/20071224/0935550505.gif>
  点我
</div>

div {
  text-align: right;
  width: 200px;
}

.move {
  width: 100%;
  transition: width 5s cubic-bezier(0.18, 0.89, 0.32, 1.28);
}