feature/window resize listener

changed min width of content div 

- [x] finish the code
- [ ] gather feedback for my changes
- [ ] submit changes to the documentation


| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| Tests pass?   | yes
| Fixed tickets | none
| Doc           | none

merge following PR before https://github.com/massiveart/husky/pull/263