Bulma is not just a column helper. It is a full UI toolkit: typography defaults, form controls, navigation patterns, and section layouts—all coordinated through Sass variables and a consistent modifier vocabulary in Bulma 1.0.
Compared to writing CSS files
Traditional CSS: invent .site-nav, debate hover states, rebuild responsive rules. Bulma: add navbar with navbar-brand and tune with is-primary or spacing helpers. Custom CSS belongs where product branding diverges from defaults—not on every margin tweak.
Compared to Bootstrap and Tailwind
Bootstrap pairs CSS with JavaScript plugins for dropdowns, modals, and collapse. Bulma gives you the styling layer; you wire behavior yourself (or use a tiny helper). Tailwind asks you to stack atomic classes; Bulma gives you component blocks like hero and message with fewer class names per widget.
Important interview questions and answers
- Q: What problem does Bulma solve?
A: It standardizes layout, typography, and common UI patterns so teams ship consistent interfaces faster—without a heavyweight JavaScript dependency for styling. - Q: Is Bulma only CSS?
A: Yes for the core framework. Interactive patterns (mobile nav toggle, dropdowns) need your own JavaScript or a checkbox/CSS hack; Bulma provides the markup and styles. - Q: When would you avoid Bulma?
A: Apps that need a batteries-included JS component library out of the box, highly bespoke design systems where every pixel is custom, or teams standardized on utility-first CSS with a build pipeline.
Self-check
- Name one thing Bulma gives you that raw inline
style=""does not. - How is Bulma different from Bootstrap’s JavaScript-powered widgets?