css style operation
css() style operation features: ① Style acquisition, jquery can obtain inline, Interior and exterior styles.
The dom method can only obtain inline styles
② Composite attribute styles need to be split into "specific styles" before they can be operated
For example: background needs to be split into background-color background-image, etc. for operation
border: border-left-style border-left-width border-left-color, etc.
margin: margin-left, margin-top, etc.
<!DOCTYPE html>
<html>
<head>
<title>php.cn</title>
<meta charset="utf-8" />
<script src="http://libs.baidu.com/jquery/1.10.2/jquery.min.js"></script>
<script>
function f1(){
alert($('div').css('background-color'));
}
function f2(){
$('div').css('background-color','red')
}
function f3(){
var jn={'width':'300px','height':'300px'};
$('div').css(jn);
}
</script>
</head>
<body>
<div style="width:200px; height:150px; background-color:lightblue;">欢迎大家学习jQuery</div>
<input type="button" value="获取背景色" onclick="f1()" />
<input type="button" value="设置背景色" onclick="f2()" />
<input type="button" value="批量设置" onclick="f3()" />
</body>
</html>