* {
background-color:#000;
margin:0 auto;
padding:0;
}

body {
width:371px;
margin:0 auto;
padding:20% 0 0 0;
text-align:center;
}

a img  {
border:0px;
cursor:hand;
}

.izq {
float:left;
}

.der {
float:right;
}