body

div#Gesamt { width: 60em; }

h1

div#Inhalt{ float:left; }

h2

div.Box { float:left; width:20em; }
div.Box { float:left; width:20em; }
div.Umbruch { clear:left; }

h2

div.Box { float:left; width:20em; }
div.Box { float:left; width:20em; }
div#Fuss { clear:left; }