<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>index</title>
<style>
*{
font-family: 微软雅黑;
}
</style>
</head>
<body>
<h1 id='hid'>aaaaaaaaaaaaaaaaaaaaaaaaaaaa</h1>
<h1>aaaaaaaaaaaaaaaaaaaaaaaaaaaa</h1>
<h1>aaaaaaaaaaaaaaaaaaaaaaaaaaaa</h1>
</body>
<script>
hidobj=document.getElementById('hid');
hidobj.style.background='#ccc';
</script>
</html>
世界上最美的风景，是自己努力的模样
