i got a problem, the theme i am using has a mobile.css,

Hello i got a problem, the theme i am using has a mobile.css, in that files there is contained, this code:
.tinynav, .tinynav1{ display: block!important; margin:20px auto 0px auto; width:280px; height:30px}
#topmenu ul.menu{ display: none; }
#logo img{max-width:250;}

But as u can see on the screenshot it dosent work?

u can access the test site here: test.snakweb.dk/test

Thank You