body {text-align: center;
      margin: 0%;
      padding: 0%;
      }

#Titel {border-style: solid;
        border-color: grey;
        border-width: thin;
        background-color: silver;
        height: 38px;
        width: 1022px;
        font-size: xx-large
        }

#Navigation {border-style: solid;
             border-color: grey;
             border-width: thin;
             height: 595px;
             width: 170px;
             float: left;
             font-size: large;
             color: yellow;
             text-decoration: underline;
             }


#Hauptseite {
  background-color: silver;
  /*border-color: gray;
  border-style: solid;
  border-width: thin; verwende die Kurzform:*/
  border: 1px solid gray;
  height: 575px;
  width: 1022px;
  padding: 20px 0 0 0;
}