html{height: 100%;}

body
{ background: url(back_2.png) repeat-x;
  color: #3E4244;
}


 #container{
position: absolute;
top: 50%;
left: 50%;
height: 291px;
width: 344px;
margin: -291px 0 0 -344px;
border: 0px solid #000;
}