html, body {
	height:100%; 
	width:100%; 
	margin:0px; 
	padding:0px;
	vertical-align:middle;
}


a.doors{
	display:block;
	width:206px;
	height:71px;
	background-image:url(../images/intro/index_r3_c2.jpg);
	background-repeat:no-repeat;
	background-position:center center;
}
a.doors:hover{
	display:block;
	width:206px;
	height:71px;
	background-image:url(../images/intro/index_r3_c2_o.jpg);
	background-repeat:no-repeat;
	background-position:center center;
}

a.tools{
	display:block;
	width:199px;
	height:71px;
	background-image:url(../images/intro/index_r3_c3.jpg);
	background-repeat:no-repeat;
	background-position:center center;
}
a.tools:hover{
	display:block;
	width:199px;
	height:71px;
	background-image:url(../images/intro/index_r3_c3_o.jpg);
	background-repeat:no-repeat;
	background-position:center center;
}