div#main_content
{
    padding: 15px 20px 0 20px;
    width: 900px;
}

div#kontakt
{
    margin-left: auto;
    margin-right: auto;
    width: 890px;
}
    div.kontakt_item
    {
        float: left;
        margin: 10px;
        width: 423px;
        border: 1px solid #999999;
    }
        div.kontakt_item p
        {
            margin: 10px 0px;
        }
        div.kontakt_item img
        {
            float: left;
            padding: 5px;
    }