body {
margin: 0px;
padding:0px;
text-align: center;
height: 100%;
}
#contenedor {
position:relative;
width:750px;
height:1000px;
margin-left:auto;
margin-right:auto;
}
#contenido {
position:relative;
width:750px;
height:1000px;
margin-left:-250px;
margin-right:auto;
width: 750px;
\width: 770px;
w\idth: 1000px; ( internet explorer )
padding: 8px 10px 5px 10px
}
