I made 3 extra pesponsive styles sheets, 320px 480px 768px.
When the sites loads, for ex in vertical-mode, it load alright, but when you switch to landscape, the site tooks the styles for the 768px instead of the 480px as it should.
Im really lost and looking forward to know about this and everytihing
I would recommend you not chase specific specific device sizes, but set styles for appropriate break points in your layout. Anyhow, perhaps play around with the meta viewport code. This looks strange to me: