abstract：如何用js控制，并改变css的样式，颜色，长宽内容<!DOCTYPE html><html><head> <title>测试</title> <style type="text/css"> #box{width: 100px;height: 100px;background: red;margin: 30p
如何用js控制，并改变css的样式，颜色，长宽内容
<!DOCTYPE html>
<html>
<head>
<title>测试</title>
<style type="text/css">
#box{width: 100px;height: 100px;background: red;margin: 30px,50px,20px,10px}
</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="300px";
}
function bb(){
box.style.width="300px";
}
function cc(){
box.style.background="#000"
}
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>
Correcting teacher：韦小宝Correction time：2018-12-13 14:58:04
Teacher's summary：写的很不错！这种效果在很页面都会有类似的！课后记得多练习哦！