<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>jquery屬性</title>
<script type="text/javascript" src="../jquery-3.2.1.min.js"></script>
<style type="text/css">
div{width: 100px;height: 100px;background: #ccc;margin: 10px;padding: 10px;border: 10px solid black}
</style>
<script type="text/javascript">
$(function(){
$('div').addClass('box3 box4');
$('div').removeClass('box2');
})
</script>
<script type="text/javascript">
$(function(){
alert($('div').width());
alert($('div').innerWidth());
alert($('div').outerWidth());
alert($('div').outerWidth(true));
})
</script>
</head>
<body>
<div class="box1 box2">div</div>
</body>
</html>
