...
All Hn tags have no style at all; Bulma tells us to use its classes to define headers instead. This is plain dumb: there is simply no reason to break rendering of these tags just because you have another idea. It should be fixed by having the Hn tags expose the same styles using class='title is-2'. Or alternatively wrap the thing in a class="content". See the sillyness in https://github.com/jgthms/bulma/issues/433 or even worse: https://github.com/jgthms/bulma/issues/211. The author does not get an important point: his framework is there to help others. Removing all styles everywhere is not helping, it's vandalism.
This might also mean that there is more foolishness than this around.
Buttons
Buttons only work nice when used with font related icons. Buttons with an image inside render badly:
...