body { padding: 20px; font-size: 0.85em; font-family: georgia, serif; }
			.btn { display: block; position: relative; background: #aaa; padding: 5px; float: left; color: #fff; text-decoration: none; cursor: pointer; margin: 5px;}
			.btn * { font-style: normal; background-image: url(btn2.png); background-repeat: no-repeat; display: block; position: relative; }
			.btn i { background-position: top left; position: absolute; margin-bottom: -5px;  top: 0; left: 0; width: 5px; height: 5px; }
			.btn span { background-position: bottom left; left: -5px; padding: 0 0 5px 10px; margin-bottom: -5px; }
			.btn span i { background-position: bottom right; margin-bottom: 0; position: absolute; left: 100%; width: 10px; height: 100%; top: 0; }
			.btn span span { background-position: top right; position: absolute; right: -10px; margin-left: 10px; top: -5px; height: 0; }
			
			* html .btn span,
			* html .btn i { float: left; width: auto; background-image: none; cursor: pointer; }
			
			.btn.blue { background: #2ae; }
			.btn.green { background: #9d4; }
			.btn.pink { background: #e1a; }
			.btn:hover { background-color: #a00; }
			.btn:active { background-color: #444; }
			.btn[class] {  background-image: url(shade.png); background-position: bottom; }
			
			* html .btn { border: 3px double #aaa; }
			* html .btn.blue { border-color: #2ae; }
			* html .btn.green { border-color: #9d4; }
			* html .btn.pink { border-color: #e1a; }
			* html .btn:hover { border-color: #a00; }
			
			p { clear: both; padding-bottom: 2em; }
			form { margin-top: 2em; }
			form p .btn { margin-right: 1em; }
			textarea { margin: 1em 0;}
			
			.mandatory { color:#EE5921; }
			.texte_bas_petit {font-size:10px;}
			
			
			.tooltip{width:200px;margin:0;padding:5px;font-size:11px;color:#666;background:#fff;border:5px solid #ccc;}
			.tooltip p{margin:0;text-align:justify;}


		        <!--
		        #centrer {
		            margin : auto;
		            width: 650px;
		            border: 1px solid #4f8a9e;
		            padding-bottom: 25px;
		            }
		        -->