body{
	background-color : #e7e7e7;
	font-family:  trebuchet MS;
	font-size : 0.75em;
	}
	
#referencia{
	position : absolute;
	right : 0px;
	bottom: 0px;
}


#imgbg{ 
	width : 600px; 
	height : 60px; 
	position: absolute; 
	left: 50%;
	top: 20px;
	margin : 0px 0px 0px -300px;
	border: 1px solid #000; 
	background-image: none; 
	text-align : center;
}


#imgbg.imagema{ 
	color: green; 
	background-image : url(http://sinistras.aranha.com.br/img-top/01.jpg);
 }
 
#imgbg.imagemb{ 
	color: Red;
	background-image : url(http://sinistras.aranha.com.br/img-top/02.jpg);
 }

a:link{
	color: red;
	text-decoration : none;
}

a:visited{
	color: red;	
	text-decoration : none;
}

a:hover{
	color: black;	
	text-decoration : underline;
}