.hidden {
    display: none;
}

@media (max-width:481px)  {
#welcome-popup {
    width:100px !important;
    height: 100% !important;
}
}
/*
@media (min-width:481px)  {
#welcome-popup {
    width:100px !important;
    height: 100% !important;
}
}
@media (min-width:641px)  {
#welcome-popup {
    width:100px !important;
    height: 100% !important;
}
}
*/
#welcome-popup {
    width:500px;
    height: 100%;
    min-width: 300px;
    min-height: 300px;
}