css圆角

@charset "utf-8";
/* CSS Document */
<style type="text/css">
.raised{background:transparent;width:1000px;}
.raised h1,.raised p{margin:0 4px;}
.raised h1{font-size:2em;color:#e4e4e4;}
.raised p{padding-bottom:0.5em;}
.raised .b1,.raised .b2,.raised .b1b,.raised .b2b{display:block;overflow:hidden;font-size:1px;}
.raised .b1,.raised .b2,.raised .b1b,.raised .b2b{height:1px;}
.raised .b2{background:#fff;border-left:1px solid #e4e4e4;border-right:1px solid #e4e4e4;}
.raised .b2b{background:#fff;border-left:1px solid #e4e4e4;border-right:1px solid #e4e4e4;}
.raised .b1{margin:0 2px;background:#e4e4e4;}
.raised .b2, .raised .b2b{margin:0 1px;border-width:0 1px;}
.raised .b1b{margin:0 2px; background:#e4e4e4;}
.raised .boxcontent{display:block;height:350px;background:#fff;border-left:1px solid #e4e4e4;border-right:1px solid #e4e4e4;}
</style>







<div class="raised">
<b class="b1"></b><b class="b2"></b>
<div class="boxcontent">
<div id="boxs">
    <div id="boxs-booking">
        </div>
    </div>
</div>
<b class="b2b"></b><b class="b1b"></b>
</div>