#topContent {
    border: solid 1px #000;
}

#imagesBoard{
    border: solid 1px #000;
}
#leftColumn {
    position: relative;
    z-index: 1;
    margin-top: 50px;
    margin-left: 10px;
    width: 240px;
    height: 490px;
    float: left;
}
#middleColumn {
    position: relative;
    z-index: 2;
    width: 580px;
    margin-left: 20px;
    margin-top: 10px;
    float: left;
    overflow: hidden;
}

#topMiddleColumnMenu{
    position: relative;
    z-index: 3;
    padding-top: 50px;
    width:450px;
    text-align: right;
}
#lowerPart{
    position: relative;
    z-index: 5;
    background-color: #fff;
    width: 600px;
    height: 415px;
}