#button  a{
color: black;
line-height:1em;
font-size: +1.1em;
text-decoration: none;
display: block;
background-color:lightgrey;
padding: 3px;
}
#button {
width: 100%;
font-family: Arial, Narrow;
}

#button a:hover{
color: red;
}

#uberschrift font{
font-size: +2em;
font-family: Arial, Narrow;
}

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

#link a:hover{
color: red;
}

#text font{
padding-right: 10%;
}

.center {
font-size:12px;
}

#link_jahrgang a{
color: darkblue;
text-decoration: none;
}

#link_jahrgang a:hover{
color: red;
}

#link_jahrgang {
text-align: center;
width: 45em;
}