body {
 background-color:lightgreen;
 color:#000000;
 font-family: Helvetica,Arial,sans-serif;
 font-size:100%;
}
.page {
 max-width:50em;
 padding:1em;
 width:90%;

}
h1 {
 
 margin-top:0em;
 margin-bottom:1em;
}

p { line-height:1.2em; }
a { text-decoration:none; }
a:link { color: blue; }
a:visited { color: blue; }
a:hover, a:focus { text-decoration:underline; }
a:active { text-decoration:none;}

.menue {
 text-align: center;
}

p.quelltext { 
 margin-left:2em;
 font-family: courier,courier-new,sans-serif;
}
.hauptfenster {
 background-color:lightgreen;
 color:#000000;
 font-family: Helvetica,Arial,sans-serif;
 font-size:100%;
 text-align: left;
 text-decoration:none;
 margin-left:200px;
 margin-top:150px;
 
}