用js代码控制div的高、宽、色、重置、隐、显
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>控制div-案例</title>
<style type="text/css">
#box{width: 100px; height: 100px; background-color: red; margin: 20px 80px;}
</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
window.onload=function() {
box = document.getElementById("box")
}
function aa(){
box.style.height="200px"
}
function bb(){
box.style.width="200px"
}
function cc(){
box.style.backgroundColor="pink"
}
function dd(){
box.style.width="100px"
box.style.height="100px"
box.style.backgroundColor="red"
}
function ee(){
box.style.display="none"
}
function ff(){
box.style.display="block"
}
</script>
</body>
</html>