html, body {
  width: 100%;
  height: 100%;
  background-color: #5D0000;
  font-family: "Trebuchet MS", Arial, Helvetica, Verdana, Sans-Serif;
  font-size: 11px;
  color: #FFFFFF;
}

input, textarea {
  font-family: "Trebuchet MS", Arial, Helvetica, Verdana, Sans-Serif;
  font-size: 11px;
  color: #000000;
}

#centre_container {
  position: absolute;
  top: 50%;
  left: 50%;
  margin-left: -350px;
  margin-top: -200px;
  width: 700px;
  height: 400px;
  background-color: #660000;
  overflow: hidden;
}

#left_container {
  position: relative;
  float: left;
  padding: 44px 44px 44px 44px;
  width: 232px;
  height: 312px;
}

#right_container {
  position: relative;
  float: right;
  padding: 44px 44px 44px 0px;
  width: 330px;
  height: 312px;
}

#main_logo {
  position: absolute;
  top: 50%;
  left: 50%;
  margin-top: -9px;
  margin-left: -118px;
  text-indent: -5000px;
  background-image: url("../images/main_logo.gif");
  width: 236px;
  height: 18px;
  overflow: hidden;
}

#main_navigation {
  position: absolute;
  top: 50%;
  left: 50%;
  margin-top: 14px;
  margin-left: -119px;
  list-style: none;
  width: 202px;
}

#main_navigation li {
  display: inline;
}

#main_navigation li a {
  float: left;
  display: block;
  height: 11px;
  text-indent: -5000px;
  margin-right: 5px;
  overflow: hidden;
}

#home_btn {
  width: 38px; 
  background-image: url("../images/home_btn.gif"); 
}

#home_btn:hover {
  background-image: url("../images/home_btn_on.gif"); 
}

#about_btn {
  width: 45px;
  background-image: url("../images/about_btn.gif");
}

#about_btn:hover {
  background-image: url("../images/about_btn_on.gif");
}

#work_btn {
  width: 38px;
  background-image: url("../images/work_btn.gif");
}

#work_btn:hover {
  background-image: url("../images/work_btn_on.gif");
}

#contact_btn {
  width: 60px;
  background-image: url("../images/contact_btn.gif");
}

#contact_btn:hover {
  background-image: url("../images/contact_btn_on.gif");
}

#intro_text {
  position: absolute;
  text-indent: -5000px;
  top: 50%;
  left: 0px;
  margin-top: -50px;
  width: 330px;
  height: 100px;
  background-image: url("../images/intro_text.gif");
  overflow: hidden;
}

#contact_header {
  margin-bottom: 10px;
  text-indent: -5000px;
  background-image: url("../images/contact_header.gif");
  width: 71px;
  height: 12px;
  overflow: hidden;
}

#details_header {
  margin-bottom: 10px;
  text-indent: -5000px;
  background-image: url("../images/details_header.gif");
  width: 61px;
  height: 12px;
  overflow: hidden;
}

#work_header {
  margin-bottom: 10px;
  text-indent: -5000px;
  background-image: url("../images/work_header.gif");
  width: 44px;
  height: 12px;
  overflow: hidden;
}

#right_container fieldset {
  margin-top: 10px;
}

#right_container fieldset label {
  display: block;
}

#right_container fieldset ol {
  list-style: none;
}

#right_container fieldset input {
  margin-top: 3px;
  margin-bottom: 10px;
  width: 100%;
}

#right_container fieldset input#yubikey {
  background-image: url("../images/yubikey_icon.gif");
  background-repeat: no-repeat;
  background-position: 1px 1px;
  padding-left: 20px;
  width: 310px;
}

#right_container fieldset input.submit_btn {
  float: right;
  width: 49px;
  height: 10px;
}

#right_container fieldset textarea {
  margin-top: 3px;
  margin-bottom: 10px;
  width: 100%;
  height: 50px;
}

.portfolio_item {
  padding: 0px;
  margin-top: 10px;
  margin-right: 10px;
  float: left;
}

.portfolio_item img {
  border: 1px solid #999999;
}

#portfolio_navigation {
  width: 100%;
  margin-top: 10px;
  float: left;
}

#portfolio_navigation li {
  display: inline;
}

#portfolio_navigation li a {
  float: left;
  display: block;
  height: 11px;
  text-indent: -5000px;
  overflow: hidden;
}

#previous_page_btn {
  float: left;
}

#next_page_btn {
  float: right;
  margin-right: 10px;
}

#previous_page_btn a {
  width: 101px;
  background-image: url("../images/previous_page_btn.gif");
}

#previous_page_btn a:hover {
  background-image: url("../images/previous_page_btn_on.gif"); 
}

#next_page_btn a {
  width: 71px;
  background-image: url("../images/next_page_btn.gif");
}

#next_page_btn a:hover {
  background-image: url("../images/next_page_btn_on.gif"); 
}