@media print {
   body {
      background-color:#fff;
   }
   .noprint {
      display:none;
   }
}

@media screen {
   .print {
      display:none;
   }
   .problem_content {
      font-size: 110%;
      border-top:solid 1px #ddd;
      border-bottom:solid 1px #aaa;
      border-left:solid 1px #ddd;
      border-right:solid 1px #aaa;
      padding:10px;
   }
   #container {
      padding-top: 60px;
   }
   #content {
      margin: 40px auto;
      max-width: 1000px;
   }
   body {
      background-color:#fff;
      color: #000;
   }
   .problem_content {
      background-color:#fff;
   }
   #container {
      padding-top: 60px;
   }
   h1,h3,h4 {
      color: #666;
   }
   h2 {
      color: #6b4e3d;
   }
   a {
      color: #777;
   }
   a:hover {
      color: #aaa;
   }
   #footer a {
      color: #bbb;
   }
   .banner {
      color: #623100;
   }
   .banner sub {
      color: #ccc;
   }
   .grid th {
      color: #666;
      background-color: #eee;
   }
   .grid td {
      background-color: #fff;
   }
}

body {
   padding: 0;
   margin: 0;
   border-width: 0;
   font: 90% "Trebuchet MS", sans-serif;
   min-height: 800px;
}

img {
   border:0;
   vertical-align: middle;
}

pre {
   white-space: pre-wrap;       /* css-3 */
   white-space: -moz-pre-wrap;  /* Mozilla, since 1999 */
   white-space: -pre-wrap;      /* Opera 4-6 */
   white-space: -o-pre-wrap;    /* Opera 7 */
   word-wrap: break-word;       /* Internet Explorer 5.5+ */
}


h1,h2,h3,h4 {
   margin: 0;
   font-family: Arial,helvetic,sans-serif;
}

h2 {
   padding: 10px 0 5px 0;
}

h3,h4 {
   font-family: "Courier New", monospace;
}

a {
   text-decoration: none;
}

.info {
	position: relative;
   cursor: help;
}
.info span {
	display: none;
	position: absolute;
   font-weight:normal;
	font-style:normal;
	top: 30px;
	padding: 5px;
	z-index: 100;
	background-color: #eee;
	border: 2px solid #666;
	border-radius: 5px;
	-webkit-border-radius: 5px;
	-moz-border-radius: 5px;
}
.info:hover {
	font-size: 100%; /* this is just for IE */
}
.info:hover span {
	display: block;
}

#container {
   position: relative;
   margin-top: 10px;
}

#logo {
   position: absolute;
   top: 0;
   left: 11px;
   width: 200px;
   margin-right: 20px;
}
#logo img {
   vertical-align:top;
}

#footer {
   margin-top: 50px;
   text-align:center;
   padding:20px;
   font:11px Verdana,sans-serif;
}

#content {
   padding: 10px;
}

.banner {
   margin-top: 30px;
   font: 200% "Arial Black",arial,sans-serif;
   font-weight: bold;
   margin-bottom: 20px;
   margin-left: -20px;
   letter-spacing: -1px;
}
.banner sub {
   font-family: "Courier New",arial,sans-serif;
}

#nav {
   position: absolute;
   top: 0;
   right: 0;
   padding: 0;
   font: 80% Tahoma, Arial, sans-serif;
   margin-bottom: 10px;
}

#nav ul {
   list-style: none;
   margin:0;
}

#nav li {
   width: 70px;
   background-color:#888;
   display:block;
   float:left;
   margin-right:7px;
   border:1px solid #777;
}

#nav a {
   color:#fff;
   display:block;
   font-weight:bold;
   padding:5px;
   text-decoration:none;
}

#nav li:hover {
   background-color:#ff9933;
}

#nav #current a {
   background-color:#ff9933;
}

var {
  font-family: times new roman;
  font-style: italic;
  font-size: 120%;
}

dfn {
   border-bottom: 1px dotted green;
   font-style: normal;
}

.hidden {
    position: absolute;
    left: -999em;
    width: 1em;
    overflow: hidden;
}

.formula table {
   border-collapse: collapse;
   margin: 0 5px;
}
.formula .frac td {
   padding: 0 5px;
   text-align: center;
}
.overline {
   border-top: 1px solid #000;
}

.grid {
  border-collapse: collapse;
}

.grid th {
   text-align: center;
   font-weight: bold;
}

.grid td, .grid th {
   padding: 2px;
   border: 1px solid #bbb;
}


.no_border {
   border-collapse: collapse;
}

.no_border td {
   padding: 1px;
   border: none;
}

.pagination {
   font-family: Tahoma, Arial, sans-serif;
   font-size: 80%;
	height: 1%; /* IE tweak (holly hack) */
   text-align: center;
}

.pagination a, .pagination a:link, .pagination a:visited, .pagination a:active {
   display: block;
   float: left;
   font-weight:bold;
	text-decoration: none;
	color: #fff;
	margin: 0 5px 0 0;
	padding: 2px;
   padding: 0.5em;
	background-color: #888;
	border: 1px solid #777;
}

.pagination a.current {
   background-color: #f93;
   font-weight: bold;
}

.pagination a:hover {
	background-color: #f93;
	color: #fff;
}

.pagination span {
   float: left;
   font-weight: bold;
}

#notification {
   margin:0 20px;
   border:2px solid #bbb;
   background-color:#e9e9fd;
   color:#333;
   padding:5px;
   font-size:80%;
}

#message {
   width:100%;
   background-color: #f9f9f9;
   color: #ff6600;
   text-align: center;
   font-weight: bold;
   border: 1px solid #ccc;
   margin-bottom: 30px;
   line-height: 2em;
}
#message a {
   color: #ff6600;
}

.news {
   background-color:#ffe;
   border:1px solid #ccc;
   padding:10px;
   margin-bottom:10px;
}