JavaScript DOM操作案例点击按钮修改div的属性
<!DOCTYPE html>
<html >
<head>
<meta charset="UTF-8">
<title></title>
</head>
<body>
<input type="button" value="修改属性" />
<div ></div>
<!--引入js文件-->
<script src="common.js"></script>
<script>
//凡是css中这个属性是多个单词的写法,js代码中DOM操作的时候,把-干掉,后面的单词大写
//点击按钮,修改div的宽高和背景颜色
my$("bt").onclick = function () {
my$("dv").style.width = "300px";
my$("dv").style.height = "300px";
my$("dv").style.backgroundColor = "deeppink";
};
</script>
</body>
</html>