html {
  background: #dde0ef;
}
body {
  text-align: center;
  font: 11px/160% Arial, Tahoma, Verdana, Geneva, Helvetica, sans-serif;
}

div.strona{
  width: 800px;
  padding    : 0px;
  padding-top: 50px;
  padding-bottom:20px;
  margin: 0px auto;
  border: 0px solid black;
  position: absolute;
  left: 50%;
  margin-left: -400px;
}

img, p, h1, dl, dt, dd {
  margin: 0px;
  padding: 0px;
  border: 0px;
}

li{
  margin-left:20px;
}

div.float_container{
  width:800px;
}