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

}

@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;
   }
    .term_content {
        font-size: 110%;
        border-top:solid 1px #ddd;
        border-bottom:solid 1px #aaa;
        border-left:solid 1px #ddd;
        border-right:solid 1px #aaa;
        background-color: #f7efde;
        padding:10px;
    }
   #container {
      padding-top: 60px;
   }
   #content {
      margin: 10px auto 10px auto;
      max-width: 85%;
   }
}

body {
   padding: 0;
   margin: 0;
   border-width: 0;
   font-family: "맑은 고딕", "Malgun Gothic", "돋움", "Trebuchet MS", "나눔고딕", "NanumGothic", "Noto Sans CJK KR", sans-serif;
   font-size: 13px;
   min-height: 800px;
}

textarea, input {
   font-family: inherit;
   font-size: inherit;
}

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

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

h1,h2,h3,h4 {
   margin: 0;
}

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

h3,h4 {
   font-weight: bold;
}

a {
   text-decoration: none;
}

input[type="radio"] {
   vertical-align:middle;
   margin:0 0 2px 2px;
   padding:0;
}

input[type="text"] {
	border: 1px solid #bbb;
}
input[type="password"] {
	border: 1px solid #bbb;
}

.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;
}

#show_problem_table {
    width: 100%;
}

#next_problem {
    text-align: right;
}

#message {
   background-color: #f9f9f9;
   color: #ff6600;
   text-align: center;
   font-weight: bold;
   border-bottom: 1px solid #ccc;
   margin-bottom: 10px;
   line-height: 2em;
}
#message a {
   color: #ff6600;
}

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

#logo {
   position: absolute;
   top: 0;
   left: 11px;
   width: 300px;
   margin-right: 20px;
}
#logo img {
   vertical-align:top;
}

#footer {
   margin-top: 10px;
   text-align:center;
   padding:10px;
   font:12px 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;
}

#info_panel {
   position:absolute;
   right:10px;
   top:30px;
   text-align:right;
   color:#999;
   font: 80% Tahoma, Arial, sans-serif;
}

#nav {
   position: absolute;
   top: 0;
   right: 0;
   padding: 0;
   font: 85% "돋움", dotum, 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;
   text-align: center;
}

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

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

var {
  font-family: "Times New Roman", Times, serif;
  font-style: italic;
  font-size: 120%;
}

.eqn {
  font-family: "Times New Roman", Times, serif;
  font-size: 120%;
}
.eqn sup {
  font-size: 80%;
}

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;
}

.form_box {
   border: 1px solid #bbb;
   padding: 10px;
   border-radius: 5px;
   -webkit-border-radius: 5px;
   -moz-border-radius: 5px;
}

.forum_table {
   border-collapse:collapse;
   width:100%;
   border:1px solid #ddd;
}
.forum_table td {
   padding: 5px;
}

.forum_message {
   padding: 5px;
   font-family: "Consolas", "Lucida Console", "Monaco", "Courier New", Courier, monospace;
   /* font-size: 1.2em; */
   font-size: 13px;
   vertical-align: top;
}
.forum_info {
   vertical-align:top;
   border-right:1px solid #ddd;
   width: 150px;
}
.forum_quote {
   padding:.5em;
   border:1px solid #999;
}

.code_box {
   border: 1px solid #bbb;
   border-top: none;
   margin: 0px 10px;
   display: none;
}
.code_summary {
  text-align: left;
}
.code_click {
   margin: 10px;
   margin-bottom: 0;
   border: 1px solid #bbb;
   text-align: right;
   font-family: "맑은 고딕", Tahoma, Arial, sans-serif;
   font-size: 85%;
   font-weight: bold;
   cursor: pointer;
   background-color: #eee;
}
.code_click table {
   width: 100%;
   padding:0;
   margin:0;
   border-collapse:collapse;
}

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

/* Pagination
---------------------------------------- */
.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: 0.4em 0.7em 0.4em 0.7em;
	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;
}