li a {
    color: green;
}

body {
    background: white url("images/hilbig_background_16deg.png") no-repeat ;
    background-size: 100%;
}

img.logo {
    width: 10%;

    margin: 20px;
    left: 20px;
    /*
    position: fixed;
    z-index: 10;*/
}

.logo-placeholder {
    height: 10px; /* height of your logo */
}

.container {
    width:100%;
    border:1px solid #d3d3d3;
}
.container div {
    width:100%;
}
.container .header {
    background-color:#d3d3d3;
    padding: 2px;
    cursor: pointer;
    font-weight: bold;
}
.container .content {
    display: none;
    padding : 5px;
}