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上边距空间,这是简单的HTML5页面,但是当我在iPhone上边距空间显示它出现HTML5的声音增加了对iphone
<!DOCTYPE HTML>
<html>
<head>
<meta charset = UTF-8 />
<meta name="viewport" content="target-densitydpi = device-dpi,width=device-width,content=user-scalable=no" />
<meta name="apple-mobile-web-app-capable" content="yes" />
<title></title>
<script type="text/javascript">
window.onload = function() {
var audio = document.createElement("audio");
document.body.appendChild(audio);
var c = document.createElement("canvas");
c.width = 320;
c.height = 480;
c.style.background = "blue";
document.body.appendChild(c);;
}
</script>
</head>
<body style="margin:0"></body>
是什么原因为何,我怎么能删除此上边距 感谢