 <!-- 
    a:link {text-decoration:none}
    a:visited {text-decoration:none}
    -->
 

    body{
      width:100%;
      min-width : 320px;
      margin:0 auto;

      

    }


    #cabecera{
z-index: 2;
height:60px;
width:100%;
background:#0078d7 url("img/withenetcheck2x.png")no-repeat center;
color:#fff;
animation: intro 700ms;
}

@keyframes intro{
from{transform:translateY(-60px)}
to{transform:trasnlateY(-0px)}
}



    #back{
z-index: 3;
position:absolute;
top:5px;
left:4px;
width:50px;
height:50px;
border-radius:50%;
border:0px;
transition: 0.3s ease-in-out;
background:rgba(255,255,255,0.2) url("img/arrow-left.png") no-repeat center;
}

#back:hover{
		background:rgba(0,0,0,0.2) url("img/arrow-left.png") no-repeat center;
      cursor:pointer; }


    #ads1{
height:100px;
z-index: 1;
position:relative;
top:3px;
margin:3px auto;
background:#fff;
}
 
    #contenedor{
    
    position: relative;
    top: -32px;

}
    #tester{
	width:100%;
	height:485px;

}


    @media only screen and (max-width:321px) {
#tester{
        width:320px;}

}