article, aside, figure, footer, header, hgoup, nav, section{ display: block;}

body {background-color: #A9F5A9;
    margin-left: 50px;}

a:hover   { background-color: blue; color: white; }

h2  {color: red;
    background-color: white;
    }
#links_sonstiges   {color: blue;} 

table,th,td,tr {border-style: hidden;
    }

#c1 {
    background-color: red;
    border: 1px solid;
    margin-left: 400px;
    margin-right: 200px;
    margin-top: 200px;
}

header {padding-left: 100px;
    }