The CSS :before selector is used to add the little arrow in the
button. This works fine for the current tests, but an important test
was missing: mix buttons with and without palettes. The mix provoked
a displacement of the buttons with palettes.
This commit fixes that by adding :before to all buttons to make them
have all the same structure in the DOM. And then adding the arrow
graphic only to the ones with palettes.
The CSS :before selector is used to add the little arrow in the button. This works fine for the current tests, but an important test was missing: mix buttons with and without palettes. The mix provoked a displacement of the buttons with palettes.
This commit fixes that by adding :before to all buttons to make them have all the same structure in the DOM. And then adding the arrow graphic only to the ones with palettes.