#prostredni-cast {
    width: 795px;
    margin-top: 0px;
    margin-bottom: 0px;
    margin-left: 0px;
    margin-right: 0px;
    padding-top: 0px;
    padding-bottom: 0px;
    padding-left: 0px;
    padding-right: 0px;
    float:left;
}