.custom-alert{    background-color:#e2e2e2;    color:color;    font-family:verdana;    font-size:11px;    padding:5px;    padding-top:15px;    background-image: url('/img/top.png');    background-repeat: repeat-x;    background-position: top;    border:3px solid black; }.bg-custom-alert{	left: 0;	top: 0;	height: 100%;	width: 100%;	position: absolute;	background-color:black;}.custom-alert-img{   	background-image: url('/img/alert.png');   	background-repeat: no-repeat;  	background-position: center;   	width:70px;   	height:72px;}.bt-custom-alert{	background-image:url('/img/bg-botao.jpg');	border:1px solid gray;	cursor:pointer;  	margin:5px;}