Logo in Mobile

Hi,

I have a website using the Matrix theme. Its laid out how I want it on my PC, however when I view using my mobile, the logo in on top of the menu so when I try and click on a page from the menu it goes back to the home page as it thinks im clicking on the logo.

I am a complete beginner, so a little confused regarding CSS and where you insert them.

Thank you in advance.

wwww.gillhamsofoswestry.co.uk