.prodejna-3d-box
{
    width: 100%;
    max-width: 980px;    
    height: 400px;
    position: relative;
    margin: 0 auto;
    display: table;
}

.prodejna-3d
{
    width: 100%;
    max-width: 980px;
    height: 400px;
    position: relative;
    margin: 0 auto 0 auto;
}