.marginBottom{
	margin-bottom: 20px;
}
.marginTop{
    margin-top: 40px; 
}
.paddingTopBottom{
    padding-top: 2em;
    padding-bottom: 2em;
}



.imagem-fundo{
    text-align: center;
    background-color: #eee;
    /*background: url(../images/fundo.jpg)no-repeat center;*/
    background-size: cover;
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
    -ms-background-size: cover;
    /*min-height: 746px*/;
    padding-top: 3em;
    padding-bottom: 3em;
}
a:hover {
    -ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=50)"; /* IE 8 */
    filter: alpha(opacity=50); /* IE7 */
    opacity: 0.6;
    text-decoration: none;
}