.H {
  position: absolute;
  left: 0px;
  top:0;
  width: 100%;
  height: 39px;
  background: url('../images/page/haut.jpg') top left;
  z-index: 1;
  }

.G{
  position: absolute;
  left: 0px;
  top:0;
  width: 40px;
  height: 100%;
  background: url('../images/page/gauche.jpg') repeat-y top left;
  z-index: 1;
  }
  
.D{
  position: absolute;
  left: 732px;
  top:0;
  width: 40px;
  height: 100%; 
  background: url('../images/page/droit.jpg') top right;
  z-index: 1;
  }
  

.HG {
  position: absolute;
  left:0;
  top:0;
  width: 40px;
  height: 40px;
  background: url('../images/page/coin-gauche.jpg') no-repeat top left;
  z-index: 2;
  }
  
.HD {
  position: absolute;
  left: 732px;
  top:0;
  width: 40px;
  height: 40px;
  background: url('../images/page/coin-droit.jpg') no-repeat top right;
  z-index: 2;
  }