body{
margin:0;
background-color:#6cc2b7;
background-image:url(img/imer_fondo.jpg);
background-position:left;
background-position:inherit;



background-repeat:no-repeat;
}

#contenedor{
width:994px;
height:596px;
position:absolute;
top:50%;
left:50%;
margin-left: -497px;
margin-top: -298px;

}