body {
  background-attachment: fixed;
  height: 100%;  
  background-image: linear-gradient(bottom, #ffffff 5%, #e06f11 55%, #52a3d0 75%, #003399 95%, #4c70b7 100%);
  background-image: -o-linear-gradient(bottom, #ffffff 5%, #e06f11 55%, #52a3d0 75%, #003399 95%, #4c70b7 100%);
  background-image: -moz-linear-gradient(bottom, #ffffff 5%, #e06f11 55%, #52a3d0 75%, #003399 95%, #4c70b7 100%);
  background-image: -webkit-linear-gradient(bottom, #ffffff 5%, #e06f11 55%, #52a3d0 75%, #003399 95%, #4c70b7 100%);
  background-image: -ms-linear-gradient(bottom, #ffffff 5%, #e06f11 55%, #52a3d0 75%, #003399 95%, #4c70b7 100%);
  background-image: -webkit-gradient(linear,left bottom,left top,color-stop(0.1, #ffffff),color-stop(0.55, #e06f11),color-stop(0.75, #3563c0),color-stop(0.95, #003399)
    ,color-stop(1.0, #4c70b7));}

#container {background-image: url(/images/layout/back-image-chemie.png); background-repeat: no-repeat;}
#wrapper {background-image: url(/images/layout/back-wrapper-ie.png); background-repeat: repeat-y; margin-top: -4px; min-height: 1200px}