Menu and Banner stopped working on iPhone 6

Hi,

About a month ago I asked for help because my menu was not clickable and the banner photo was not working on the iPhone 6. You gave me code that helped, but it is not working anymore. Could you please help me out again? Thanks!

This is the code that isn’t working anymore:
@media handheld, only screen and (max-width: 900px){
#logo { max-width: 70% !important; }
}