.div_haupt
{
    width: 986px;
    position: absolute;
    left: 50%;
    margin-left: -500px;
}


.div_topleft
{
    position: absolute;
    top: 20px;
    left: 50px;
}

.div_right
{
    position: absolute;
    left: 300px;
    height: 620px;
    width: 700px;
    background-color: #E0EAF7;
}


.div_right_footer
{
    position: absolute;
    top: 595px;
    left: 940px;
}

.div_menu_footer
{
  position:absolute;
  top:600px; 
  width:290px; 
}

.div_content
{
    position: absolute;
    top: 200px;
    left: 300px;
    height: 390px;
    width: 700px;
    padding: 20px;
    border-left: solid 25px #E0EAF7;
    overflow-y: auto;
    overflow-x: hidden;
    z-index: 13;
}
/* Wichtig für Firefox!! */
html > body .div_content
{
    width: 635px;
    height: 350px;
    z-index: 13;
}

.div_background1
{
    position: absolute;
    top: 200px;
    left: 300px;
    display: block;
    float: left;
    background-color: White;
    width: 700px;
    height: 390px;
    z-index: 10;
}


.div_background2
{
    position: absolute;
    top: 200px;
    left: 300px;
    display: block;
    float: left;
    background-color: white;
    width: 600px;
    height: 390px;
    z-index: 12;
    /*filter: alpha(opacity=80);*/ /* IE */
    /*-moz-opacity: 0.8;*/ /* Gecko-Browser */
    /*opacity: 0.8; *//* Opera 9+ */
}