How to use DOM to change the style of html
The following code:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>DOM 与 CSS</title>
</head>
<body>
<div name="dv" id="dv" width="300" height="200">php 中文网</div>
<script type="text/javascript">
var dv = document.getElementById("dv").style.color = "red";
</script>
</body>
</html>