body {
  background-image: url(back07.jpg);
  background-position: center center;
  background-repeat: no-repeat;
  background-attachment: fixed;
  background-size: cover;
  background-color: #000;
  color: #eeeeee;
  font-size: 115%;
  font-family: "Book Antiqua", Georgia, cursive;
  padding: 0;
  margin: 0;
}

a {
  color: #eeeeee;
}

.container {
  display: grid;
  height: 100vh;
  max-width: 800px;
  margin: auto;
  grid-template-columns: auto;
  grid-template-rows: auto auto 1fr auto;
  grid-template-areas:
    "header"
    "nav"
    "content"
    "footer";
}

.header {
  grid-area: header;
  text-align: center;
  padding-top: 20px;
  background: rgba(0, 0, 0, 0.1);
  border-left: 1px solid black;
  border-right: 1px solid black;
}

.nav {
  grid-area: nav;
  border-left: 1px solid black;
  border-right: 1px solid black;
}

ul.nav {
  padding: 10px 20px 0 20px;
  margin: 0 0 0 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  flex-wrap: wrap;
  list-style: none;
  font-weight: bold;
  border-top: 1px solid black;
  border-bottom: 1px solid black;
  font-size: 90%;
}

ul.nav li {
  flex: 1;
  padding: 10px 10px 20px 10px;
}

ul.nav li a {
  text-align: center;
  display: block;
  text-decoration: none;
  transition: 0.5s ease;
  padding: 0;
  color: #eeeeee;
}

ul.nav li .nav-selected {
  color: #236f23;
}

ul.nav li a:hover {
  color: #236f23;
}

.content {
  grid-area: content;
  padding: 10px 20px 30px 20px;
  background: rgba(0, 0, 0, 0.3);
  border-left: 1px solid black;
  border-right: 1px solid black;
}

img {
  max-width: 100%;
  height: auto;
}

.content img {
  border: 1px solid #222;
  margin-top: 10px;
}

.content h1 {
  margin-top: 40px;
}

table {
  border-collapse: collapse;
  border-spacing: 0.5rem;
  background: rgba(0, 0, 0, 0.4);
}

td,
th {
  border: 1px solid #888;
  padding: 0.5rem;
  text-align: center;
}

td:nth-child(1) {
  font-weight: bold;
  text-align: left;
}

hr {
  margin: 60px auto;
  width: 80%;
  border: 0;
  height: 0;
  border-top: 1px solid rgba(0, 0, 0, 0.1);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.abbildung {
  margin: 0 0 16px 0;
  padding: 0;
  width: 100%;
  text-align: center;
  letter-spacing: 0.2em;
}

.namen {
  margin-top: 36px;
}

.unterstuetzer {
  display: grid;
  grid-template-columns: 50% 50%;
}

.unterstuetzer > a {
  padding: 20px;
}

.unterstuetzer > div {
  padding: 40px;
  font-weight: bolder;
  font-size: larger;
}

.zentriert {
  text-align: center;
}

.fett {
  font-weight: bold;
}

footer {
  grid-area: footer;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  grid-template-rows: auto;
  grid-template-areas: "footerlogo footerlinks footerkontakt";
  padding: 30px 20px 30px 20px;
  background: rgba(0, 0, 0, 0.5);
  font-size: 80%;
  border-top: 1px solid black;
}

.footer-logo {
  grid-area: footerlogo;
}

.footer-links {
  grid-area: footerlinks;
}

.footer-kontakt {
  grid-area: footerkontakt;
}

footer a {
  text-decoration: none;
  color: #236f23;
}

@media only screen and (max-width: 800px) {
  footer {
    grid-template-columns: 1fr;
    grid-template-rows: 1fr 1fr 1fr;
    grid-template-areas:
      "footerlogo"
      "footerlinks"
      "footerkontakt";
  }

  footer div {
    padding: 10px 30px;
  }
}