Title and sidebar image need to re-size on smaller displays

I refer you to my latest design,,, http://www.criterion-ices.co.uk/ 1. The title 'Welcome to multi-award winning Criterion Ices' is correct at the 3 larger monitor sizes, but at 3 mobile sizes is too small, how can I make it bigger on them? 2. The row of 'taste' logos are perfect size on the 3 larger monitor sizes, but are relatively too big on the 3 small sizes, I need to make them smaller on them. 3. At smaller sizes I am getting a main menu bar appear (I only have one page so far), is there way to get rid of this menu bar for time-being?