Blog post title on Homepage and more..

Good Afternoon Or Morning :) 1. Please could you assist me, How to do I lighten the text to prehaps be white or Light grey in the section where the blog is? I love the green when hover or click on the post but the black is a bit dark on first look. It is jus the sections where the blog is above the footer areas. 2. I would like the Site Title and Discription to Be white but still have the green Hover as per the site theme. 3. I would like the css coding to change the menu colors for mobile devices only. aneye4aneye.co.za thank you so much, Kindest regards