学习改变div的属性 用函数形式改变
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>html课程学习div属性的改变-changeDIV</title>
<link rel="shortcut icon" type="image/X-icon" href="image/logo2.png">
<link rel="stylesheet" type="text/css" href="css/index.css">
<style type="text/css">
#box{width: 100px;height: 100px;background-color: red;}
</style>
</head>
<body>
<div id="box"></div>
<input type="button" value="变高" onclick="aa()">
<input type="button" value="变宽" onclick="bb()">
<input type="button" value="变色" onclick="cc()">
<input type="button" value="重置" onclick="dd()">
<input type="button" value="隐藏" onclick="ee()">
<input type="button" value="显示" onclick="ff()">
<script type="text/javascript">
var box
windows.onload=function () {
box=document.getElementById('box')
}
function aa(){
box.style.height="400px;"//改变高度
}
function bb(){
box.style.width="400px;"//改变宽度
}
function cc(){
box.style.background="pink"
}
function dd(){
box.style.height="100px"
box.style.width="100px"
box.style.background="red"
}
function ee(){
box.style.display="none"
}
function ff(){
box.style.display="block"
}
</script>
</body>
</html>