Mobile Menu For Post Pages & Blog layout

Good Afternoon or evening :) Please could you assist me with two CSS codes for the following. 1. On Mobile only on the blog posts, my hamburger menu is a very dark grey almost transparent. I don't want to change the font colors or the wrapper. Just the actual Hamburger menu. 2. I want to have my two blog posts next to each instead of underneath each other on the Homepage. The blog posts are above my footers. I just want them side by side. I appreciate any assistance. My website is https://aneye4aneye.co.za Kindest regards