I am trying to Justify my menu list to the left

I have been customising a theme and want to move the menu list in the header to the left as the words to the right disappear on iPads, it is that or I need to make the site responsive to fit the iPad.
What do I do to align the menu wording to the left?
https://www.myfeaturewall.net.au

Note I am an absolute novice when it comes to this bit if I fiddle around enough I get there but this just has me beat, it may have something to do with my favicon / logo???

Gregory