#logos_retro {
	height: 600px;
	position: relative;
	border: 0;
}

#gaz21 {
	position: absolute;
	left: 30px;
	top: 0px;
	width: 354px;
	height: 278px;
	background-image: url(../images/retro/gaz21.png);
    background-repeat: no-repeat;
	opacity: 0.5;
	ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=50)";
	filter: alpha(opacity=50);
	z-index: 0;
}

#gaz13 {
	position: absolute;
	left: 530px;
	top: 20px;
	width: 388px;
	height: 244px;
	background-image: url(../images/retro/gaz13.png);
    background-repeat: no-repeat;
	opacity: 0.5;
	ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=50)";
	filter: alpha(opacity=50);
	z-index: 0;
}

#gazm12 {
	position: absolute;
	left: 0px;
	top: 335px;
	width: 441px;
	height: 210px;
	background-image: url(../images/retro/gazm12.png);
    background-repeat: no-repeat;
	opacity: 0.5;
	ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=50)";
	filter: alpha(opacity=50);
	z-index: 0;
}

#gazm20 {
	position: absolute;
	left: 485px;
	top: 265px;
	width: 419px;
	height: 308px;
	background-image: url(../images/retro/gazm20.png);
    background-repeat: no-repeat;
	opacity: 0.5;
	ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=50)";
	filter: alpha(opacity=50);
	z-index: 0;
}

#gaz21:hover, #gaz13:hover,
#gazm12:hover, #gazm20:hover {
	opacity: 1;
	ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=100)";
	filter: alpha(opacity=100);
}