body {
	background-attachment: fixed;
	background-image: url(images/body-background.jpg);
	background-repeat: repeat-x;
	background-position: left top;
	padding: 0px;
	margin-top: 20px;
	margin-right: 0px;
	margin-bottom: 0px;
	margin-left: 0px;
	font-family: Arial, Helvetica, sans-serif;
	font-size: 14px;
	color: #000000;
}

a {
  color: #006699;
  text-decoration: underline
}

h1 {
	font-family: Verdana, Arial, Helvetica, sans-serif;
	font-size: 24px;
	color: #669900;
	margin-top: 0px;
	margin-right: 0px;
	margin-bottom: 20px;
	margin-left: 0px;
  }

.spacer {
    clear: both;
    height: 10px;
}

.rounded {
	width: 900px;
	height: 6px;
	margin-left:auto;
	margin-right:auto;
	background-color:#FFFFFF;
	background-image: url(images/top-rounded.jpg);
	background-repeat: no-repeat;
	background-position: top;
}

#main_content {
	width: 880px;
	margin-left:auto;
	margin-right:auto;
	height: 100%;
	background-color:#FFFFFF;
	padding: 10px;
	border-right-width: 1px;
	border-left-width: 1px;
	border-right-style: solid;
	border-left-style: solid;
	border-right-color: #006699;
	border-left-color: #006699;
}

#main_content #header_cont {
	height: 214px;
	width: 880px;
	display:block;	
	
}

#main_content #header_cont #header_cont_left {
	width: 350px;
	height: 214px;
	float:left;
	display:block;
	text-align: left;
	vertical-align: top;
}

#main_content #header_cont #header_cont_left .ad {
	width: 250px;
	display:block;
	text-align: center;
	vertical-align: top;
}

#main_content #header_cont #header_cont_img {
	width: 500px;
	height: 214px;
	display:block;
	float:right;
	position:relative;
	background-image:url(images/computer-teacher-header.jpg);
	background-repeat: no-repeat;
	background-position: center top;
}

#main_content #article_cont {    
	width: 880px;
	height: 900px;
	background:#FFFFFF;
}

#main_content #article_cont #article_cont_left {
	width: 180px;
	height: 100%;
	float:left;
	padding: 3px;
	vertical-align: top;
	display: block;
}

#main_content #article_cont #article_cont_main img {
  margin-left: 10px;
  margin-right: 10px;
  border: 0px;
  float:right;
}
#main_content #article_cont #article_cont_main {
	height: 100%;
	margin: 0 180px 0 180px;
	padding: 0 0 0 10px;
	vertical-align: top;
	position:relative;
	width: 490px;
}

#main_content #article_cont #article_cont_right {
	width: 180px;
	height: 100%;
	float:right;	
	position:relative;
}

#ruler {
	background-image: url(images/ruler.jpg);
	background-repeat: no-repeat;
	height: 40px;
	width: 886px;
	display:block;
	text-align:center;
	vertical-align:bottom;
	margin-left:auto;
	margin-right:auto;
}

h2 {
	font-family: Arial, Helvetica, sans-serif;
	font-size: 20px;
	color: #006699;
}
#copyright {
   display:block;
   text-align:center;
   font-family:Arial, Helvetica, sans-serif;
   font-size:12px;
}