body { font-family:serif; font-size:medium; text-align:justify; background-image:url("../images/img_background.gif"); }
*.image-without-desc { text-align:center; }
*.image-with-desc { margin-left:auto; margin-right:auto; }
*.image-description { text-align:left; font-style:italic; }
#sidebar {
	position:absolute;
	width:15em;
	height:auto;
	top:3em;
	bottom:0;
	left:0;
	right:auto;
	margin-top:1em;
	margin-bottom:1em;
	margin-left:1em;
	margin-right:1em;
}
#main {
	position:absolute;
	width:auto;
	height:auto;
	top:3em;
	bottom:0;
	left:15em;
	right:0;
	margin-top:1em;
	margin-bottom:1em;
	margin-left:1em;
	margin-right:1em;
	overflow:auto;
}
#footer {
	position:absolute;
	width:auto;
	height:3em;
	top:0;
	bottom:auto;
	left:0;
	right:0;
	margin-top:1em;
	margin-bottom:1em;
	margin-left:1em;
	margin-right:1em;
}