body { margin: 0; width: 600px; font-family:Arial,sans-serif; background-color:#ffffff; color:#008040 }
a:link { color:#000000; text-decoration:none; font-weight:bold; }
a:visited { color:#000000; text-decoration:none; font-weight:bold; }
a:focus { color:#000000; text-decoration:none; font-weight:bold; }
a:hover { color:#000000; text-decoration:none; background-color:#ff0; font-weight:bold; }
a:active { color:#000000; text-decoration:none; font-weight:bold; }
h1 { font-size:300% }
h2 { font-size:150% }
h3 { font-size:100% }
#os { margin: 0px }
#ms { margin: 10px } 
#us { margin: 0px } 
#tab_mitte { width:700px }
#tab_menu { width:200px }