Out of bounds blocks

[Andrea97S]

I'm submitting a...

[ ] Regression (a behavior that used to work and stopped working in a new release)
[x] Bug report  
[ ] Performance issue
[ ] Feature request
[ ] Documentation issue or request
[ ] Other... Please describe:

Current behavior

When you add a lot of block this goes out of bounds and there is no way to scroll this.
I added 2 blocks under the 1-43 but as you can see i can't scroll under that block.

Expected behavior

A scrollable/draggable div.

Minimal reproduction of the problem with instructions

Add more then 16 blocks in the demo guide --> proximity --> simple

Environment

Browser:

• Chrome (desktop) version XX
• Chrome (Android) version XX
• Chrome (iOS) version XX
• Firefox version XX
• Safari (desktop) version XX
• Safari (iOS) version XX
• IE version XX
• Edge version XX

For Tooling issues:

• Platform: Windows