header  {
  margin: 0em;
  margin-left: 3.5em;
  margin-right: 3.5em;
  border: 2px solid black;
  background: orange;
}

header p#links {
  margin: 0em 0em 0em 0.5em; 
  font-size: 42px;
  font-family: Arial;
}

header p#rechts {
  margin: 0em 0.5em 0.5em 0em; 
  font-size: 12px;
  text-align: right;
  vertical-align: middle;
  font-family: Arial;
}

nav {
  margin: 3.5em;
  margin-bottom: 0;
  list-style: none;
}


nav a:link , 
nav a:visited {
  display: inline-block;
  width: 5em;
  padding: 0.5em;
  background: #C0C0C0;
  text-decoration: none;
  color: black;
  border-radius: 0.5em 0.5em 0em 0em;
  border: 2px solid black;
}

nav a:hover {
  background-color: orange;
  text-decoration: underline;
}

nav a#aktiv {
  background: #e5e5e5;
  border-bottom: 0px;
}

main {
  margin-top: 0;
  margin-left: 3.5em;
  margin-right: 3.5em;
  padding: 2em;
  border-left: 2px solid black;
  border-right: 2px solid black;
  border-bottom: 2px solid black;
  border-top: 2px solid black;
  background: #e5e5e5;
}

main  p#gross {
  font-size: 42px;
  font-family: Arial;
  text-align: center;
}

main  p#mittel {
  font-size: 18px;
  font-family: Arial;
  text-align: center;
}

main  ol#gross {
  font-size: 18px;
  font-family: Arial;
}

main  ul#gross {
  font-size: 18px;
  font-family: Arial;
}

main h1 {
  font-size: 32px;
  padding: 0em;
}

table { 
  border-collapse: collapse;
}

table#if8 {
  width: 70%;
}

th, td {
  border: 1px solid #c0c0c0;
  padding: 1em;	
}

div#box {
  box-sizing: content-box;
  margin: 0em;
  margin-left: 3.5em;
  margin-right: 3.5em;
  padding: 1em;
  border-left: 2px solid black;
  border-right: 2px solid black;
  border-bottom: 2px solid black;
  background: #C0C0C0;
}

div#box p {
  font-size: 18px;
  font-family: Arial;
}

div#box img {
  float: right;
}

footer  {
  margin: 3.5em;
  margin-bottom: 0;
  list-style: none;
}

footer li {
  display: inline;
}

footer img {
  border: 2px solid black;
}