为什么我浏览器宽度弄到480px时 为什么图片宽度还是10%呢 为什么不是50%？
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title></title>
<style type="text/css">
#div1{width: 50%;height: 500px;background-color: blue;}
#img1{width: 10%;height: 30px;display: inline-block;}
@media(min-width: 420px)and(max-width: 550px;){
#img1{display: inline-block;width: 50%;height: 30px;}
}
</style>
</head>
<body>
<div id="div1">
<img src="1.jpg" id="img1">
</div>
</body>
</html>
@media (min-width : 420px) and (max-width : 550px){
#img1{display: inline-block;width: 50%;height: 30px;}
}注意空格