/* Inset 3D Raised */
.raised {background: transparent; width:40%; margin:0 auto;}
.raised h1, .raised p {margin:0 10px;}
.raised h1 {font-size:2em; color:#fff; letter-spacing:1px;}
.raised p {padding-bottom:0.5em;}
 
.raised .top, .raised .bottom {display:block; background:transparent; font-size:1px;}
.raised .b1, .raised .b2, .raised .b3, .raised .b4, .raised .b1b, .raised .b2b, .raised .b3b, .raised .b4b {display:block; overflow:hidden;}
.raised .b1, .raised .b2, .raised .b3, .raised .b1b, .raised .b2b, .raised .b3b {height:1px;}
.raised .b2 {background:#ccc; border-left:1px solid #fff; border-right:1px solid #eee;}
.raised .b3 {background:#ccc; border-left:1px solid #fff; border-right:1px solid #ddd;}
.raised .b4 {background:#ccc; border-left:1px solid #fff; border-right:1px solid #aaa;}
.raised .b4b {background:#ccc; border-left:1px solid #eee; border-right:1px solid #999;}
.raised .b3b {background:#ccc; border-left:1px solid #ddd; border-right:1px solid #999;}
.raised .b2b {background:#ccc; border-left:1px solid #aaa; border-right:1px solid #999;}
 
.raised .b1 {margin:0 5px; background:#fff;}
.raised .b2, .raised .b2b {margin:0 3px; border-width:0 2px;}
.raised .b3, .raised .b3b {margin:0 2px;}
.raised .b4, .raised .b4b {height:2px; margin:0 1px;}
.raised .b1b {margin:0 5px; background:#999;}
.raised .boxcontent {display:block;  background:#ccc; border-left:1px solid #fff; border-right:1px solid #999;}

<div class="raised">
	<b class="top"><b class="b1"></b><b class="b2"></b><b class="b3"></b><b class="b4"></b></b>
	<div class="boxcontent">
		<h1>3D выпуклый</h1>
		<p>Закруглённые уголки + имитация выпуклости</p>
	</div>
	<b class="bottom"><b class="b4b"></b><b class="b3b"></b><b class="b2b"></b><b class="b1b"></b></b>
</div>