Fylo - Dark Landing Page

I had some issues with the review boxes when scaling my screen down, at certain points the text overflowed outside of the boxes. I couldn't figure out how to fix that. What I did now was take the critical screen sizes and lower the font-size until it overflowed again. I assume there should be a more efficient way to do this?

I also had problems with the placement of the quotation marks. I couldn't manage to stick them to the first box. Especially for the mobile design, where I placed the boxes in flex-direction: column, they start out on the left and as I lower the size, the boxes move over them and they end up on the right of the boxes. This all makes sense, as I used a static measurement to place them. However, I have similar issues with percentages and it just doesn't look good.