Responsive News homepage using Grid

This project took me almost a week to complete, but that's only because I started wrong, and analyzed the page in the wrong way. After 3 days of coding, I stopped and started from scratch which wasn't the easiest thing to do to just throw away almost 400 lines of cluttered code, but it was the best decision because it gave me the flexibility of writing a cleaner code, and more simple code. This was also my biggest project to this point, and I am so proud of have finished it!

A question for you: -Was this the cleanest code I could've wrote? -And should I have made the "footer" area 3 divs and include them into the main grid or my way of doing it as a one big div with 3 inner divs the best way?