CSS-GroupBox简略实现

<style><!--.groupbox	{margin:10px;	width:500px;	height:500px;	border:thin solid black;	padding:10px}.grouptitle	{display:block;	margin-top:-24px;	margin-left:20px;	width:150px;	text-align:center;	background-color:white}--></style><div class="groupbox">	<span class="grouptitle">GroupBox实现方式</span></div>