<!doctype html>
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>1</title>
<style type="text/css">
body{margin:100px;}
#x
{
position:relative;
width:300px;
height:360px;
background-color:#07284a;
-moz-border-radius: 30px;
-webkit-border-radius:30px;
-khtml-border-radius:30px;
border-radius:30px;
border:1px solid #37629B;
}
#f
{
background-color:#07284a;
width:126px;
height:126px;
position:absolute;
right:-63px;
top:-63px;
-moz-border-radius: 63px;
-webkit-border-radius:63px;
-khtml-border-radius:63px;
border-radius:63px;
border:1px solid red;
}
</style>
</head>
<body>
<div id="x">
<div id="f"></div>
</div>
块"x"内部显示为圆圈的红色边框...如何从圆圈中删除25%的边框？抱歉英文不好
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