html {
  font-size: 62.5%;
  background: #FFF url("../images/background-slack.jpg") repeat;
}

/* reset */
body, div, dl, dt, dd, h1, h2, h3, h4, h5, h6, pre, p, th, td, article, section, figure, img {
  margin: 0;
  padding: 0;
}

body {
  font-size: 1.2rem;
  line-height: 2rem;
}

header[role="banner"] {
  width: 100%;
  height: 100px;
  background: #555 url("../images/tux.png") 5px 5px no-repeat;
}

article {
  margin-top: 15px;
}

a {
  text-decoration: none;
  color: #00F;
}

a:visited {
  text-decoration: none;
  color: #00F;
}

a:hover {
  text-decoration: underline;
  color: #00F;
}

a:active {
  text-decoration: none;
  color: #00F;
}

nav[role="navigation"] ul {
  float: right;
  text-align: right;
  margin: 0;
  margin-top:60px;
  margin-right: 10px;  
  color: #BBB;  
}

nav[role="navigation"] li {
  display: inline;
}

nav[role="navigation"] ul li a:link {
  text-decoration: none;
  color: #BBB;
}

nav[role="navigation"] ul li a:visited {
  text-decoration: none;
  color: #BBB;
}

nav[role="navigation"] ul li a:hover {    
  text-decoration: none;
  color: #FFF;
}

nav[role="navigation"] ul li a:active {
  text-decoration: none;
  color: #FFF;
}


ul#socialbar li.facebook a {
    background-position: 0px 0px;
}

ul#socialbar {
    width: 160px !important;
    height: 16px !important;
    margin:0; 
    padding:0; 
    list-style:none; 
    clear:both;
    position: absolute;
    top: 30px;
    right: 5px !important;
    text-align: right;
}  

ul#socialbar li {
  overflow:hidden; 
  text-indent:-9999px; 
  display:inline; 
  float:left; 
  margin-right:0;
  
}  

ul#socialbar li a {
  background:url("../images/social.png") no-repeat; 
  width:216px; 
  height:16px; 
  display:block;  
}  
  
ul#socialbar li.facebook { 
  width:80px; 
  height:16px;  
}  

ul#socialbar li.facebook a { 
  background-position:0px 0px; 
}  

ul#socialbar li.facebook a:hover { 
  background-position:-0px -16px;  
}  
  
ul#socialbar li.twitter { 
  width:72px; 
  height:16px;  
}  

ul#socialbar li.twitter a { 
  background-position:-86px -0px;  
}  

ul#socialbar li.twitter a:hover { 
  background-position:-86px -16px;  
}  


section.news {
  width: 80%;  
}

section.news header {
  text-align:center;
}

section.news article header h3 {
  margin: 0;  
}

section.news article header time {
  font-size: 0.9rem;
}

section.news article p, section.notice p, section.description p, section.references ol li {
  font-size: 1rem;
  line-height: 1.5rem;
  margin: 0 5px;
}

section.introduction {
  width: 80%;
  margin: -15px 5px 0 5px;
}

section.right {
  float: right;
  width: 20%;
  margin-top: 5px;
  margin-right: 10px;
}

section.quotes {
  border: 3px solid #CCC;
  border-left: 0;
  border-right: 0;
  margin: 0;
  padding: 2px 0;
  width: 100%;  
  text-align: right;
  font-size: 1rem;
  color: #333;
}

section.biography {
  width: 100%;
  margin-top: 10px;
  padding-left: 10px;
}

section.biography header {
  font-size: 1rem;
  font-weight: bold;
  text-align:center;
}

section.biography p {
  font-size: 0.8rem;
  text-align:justify;
  margin-right: 10px;
  line-height: 1.5rem;
}

section.material h1, section.references h1, section.description h1, section.notice h1  {
  margin-left: 5px;
}

section.material ol li {
  line-height: 1.3rem;
  font-size: 1rem;
  margin: 0;
  padding: 0;
}

section.material ol ul li {
  line-height: 1.2rem;
  font-size: 1rem;
  margin: 0;
  padding: 0;
}

footer {
 clear:both;
 background: #555;
 font-size:0.8rem;
 text-align:center;
 color: #DDD
}

footer a:link {
  text-decoration: none;
  color: #DDD;
}

footer a:visited {
  text-decoration: none;
  color: #DDD;
}

footer a:hover {    
  text-decoration: none;
  color: #FFF;
}

footer a:active {
  text-decoration: none;
  color: #FFF;
}

#calendar {
  width: 90%;
  margin: 0 auto;
}

section.title {
  background: #AAA;
  width: 100%;
  height: 35px;
  display: block;
  text-align: center;
  font-size: 2rem;
}

section.sidebar {
  float: right;
  width: 20%;
}

section.about article ol li, section.presentations article ol li {
  margin-left: 10px;
}

section.about article header h1, section.presentations article header h1, section.teaching article header h1 {
  margin-left: 10px;
}