<meta name="viewport" content="width=device-width,initial-scale=1.0,
maximum-scale=1.0,minimum-scale=1.0,user-scalable=no">
禁止用户放大和缩小
<meta name="viewport" content="width=device-width,initial-scale=1.0,
maximum-scale=1.0,minimum-scale=1.0,user-scalable=no">
禁止用户放大和缩小