.unnamed1 {
	background-image: url(images/fond.jpg);
	background-repeat: repeat-x;
}
.tronc {
	background-image: url(images/tronc.gif);
	background-repeat: repeat-y;
}
.unnamed2 {
	background-image: url(images/fond_noir.jpg);
	background-repeat: repeat-x;
}
.tronc2 {
	background-image: url(images/tronc_neg.gif);
	background-repeat: repeat-y;
}
.lignewh {
	background-image: url(images/ligne.gif);
	background-repeat: repeat-x;
}
.tronc3 {
	background-image: url(images/tronc_noir.gif);
	background-repeat: repeat-y;
}
.unnamed3 {
	background-image: url(images/fond_noir2.jpg);
	background-repeat: repeat-x;
}
.vligne {
	background-image: url(images/pix.jpg);
	background-repeat: repeat-y;
	background-position: center;
}
.cocnb1 {
	background-image: url(images/cocinb1.jpg);
	background-repeat: repeat-x;
	background-position: bottom;
	vertical-align:bottom;
}
.cocnb2 {
	background-image: url(images/cocinb2.jpg);
	background-repeat: repeat-x;
	background-position: bottom;
	vertical-align:bottom;
}
.cocnb {
	background-image: url(images/cocinb1.jpg);
	background-repeat: repeat-x;
	background-position: left bottom;
	background-position: bottom;
	vertical-align:bottom;
}
.cocnb3 {
	background-image: url(images/cocinb3.jpg);
	background-repeat: repeat-x;
	background-position: bottom;
	vertical-align:bottom;
}
#bas {
  position : absolute;
  bottom : 0;
  height : 30px;
  line-height : 30px;
}
#bas {
  width : 100%;
  left : 0;
  background-color : #e9967a;
}
#bashome {
  width : 100%;
  left : 0;
  background-color : #e9967a;
}
#main {
      height: 50%;
      overflow: auto;
}
<script src="DWConfiguration/ActiveContent/IncludeFiles/AC_RunActiveContent.js" type="text/javascript"></script>