html5で浮き出しボタンを作るサンプル

program 
<html>
<style>
button {
	color			: #dddddd;
	font-weight		: bold;
	padding			: 10px;
	background		: #888888;
	border-style	: none;
	border-radius	: 5px;
	box-shadow		:  5px  5px 5px 0px #ffffff inset,
					  -5px -5px 5px 0px #000000 inset;
	text-shadow		: -1px -1px 0px #000000;
}
</style>
<body>
<button>button</button>