I just scripted my website http://www.aikapan.de and I am using the @media only screen and (max-width: 600px) {} method to resize the page at a certain screen-width.
On another page http://www.gall-technology.de it is working fine (At PC AND on the smartphone)!
On my page it is working at a desktop PC by resizing the browser windows jsut fine!
But on a Samsung Galaxy S4 Mini it is not working at all.