nav menus, colours and search bars

HI, I was just wondering if anyone could tell me in la-mans terms how do I lower my logo and nav menu on the home page of the customizr theme,as my hello bar is blocking it

and also on my products page the text to say what the attribute font is the wrong colour, so if anyone could help me change that too thatd be great, thanks in advance.

Also I found out how to put in a search bar but not how to do it through a child theme if someone could help with that too

https://www.yoursafety.ie/