I made this little tweak to the styles menu, which I figured was a silly idea I would revert immediately. But on seeing it, I think its going to stay.
The styles menu shows the style of the current block, and allows it to be switched. The change was to keep the active selection aligned to the start of the block, and move the menu itself.
I like it because the menu highlight serves to show you which style the block is, and which block it will apply to.