Text, Images, Video not Full Width

Hello,

I’m a newbie at building sites. I’ve been trying to research and plugging in code in custom css to adjust the white margin or padding (right/left) on a site I’m working on. Nothing in the home page is full width.

There also is too much space (on bottom) between after each section…features, Our Mission image, 2015 Trailer, etc.

Utilizing Woothemes Canvas. Site is DCAFF.org

Many thanks!