### Overlay Solution

1. Dialogs and dropdowns (should) live in separate parts of the tree.
2. Support "constrained" dropdowns that can be guaranteed to be on top of everything.
   - These dropdowns are constrained by how their DOM is generated, and how rules like scoping, events and other things apply.
3. This can be layered on top of the existing overlay solution.

### Action Items

 - (cdata) Explore `position: fixed` breaking out of `overflow: hidden`.
 - (cdata) Create proof-of-concept for "constrained" dropdowns.
 - (sorvell) Templatizer that supports special styling features ("psuedoelement").