Quick wordpress CSS changes

Hello,
I have a very basic 5 page website in wordpress.
Since I'm travelling, I need someone to make some quick changes there.

I'll share the details only with reputed sellers here with more than 5 positive reviews in wordpress related jobs.

The changes are pretty much basic CSS ones and I have godaddy login so if you've experience on using file manager there, it might just come handy.
I need these all changes to be done today or latest by tomorrow same time.

Thanks