*{font-family: Arial, sans-serif;}
body{
    margin:0; padding:0;
}

.vidal_logo{
    background:url('../imgs/logo_vidal.png') no-repeat;
    width:107px;
    height:107px;
    position:absolute;
    top:50%;
    left:50%;
    margin-top:-53px;
    margin-left:-53px;
}