Expanding/Collapsing boxs

I think a great way to save space and make things look neater are to start adding expanding/collapsing box's for content. One example would be Shoutboxs on profile pages. I'm building my website for mobile viewing and alot of the content looks great on the computer, but on mobile its too many box's taking up space. I think a collapsable/expandable box for Shoutbox would look great for mobile since I have the timeline underneath it. 

Check out this site to see simple examples:

https://open.berkeley.edu/guides/site-builders-guide/edit-html-page/expandcollapse-content