Questions: CSS — Cascading Style Sheets¶

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Question Log¶

Q1 — Why is it called "cascading"?¶

Asked: 2026-06-09 Status: unanswered

What does the word "cascading" actually mean in CSS? Is it just a historical name or does it describe something specific?

Q2 — When should I use Flexbox vs. Grid?¶

Asked: 2026-06-09 Status: unanswered

I keep reading that Flexbox is for one-dimensional layout and Grid is for two-dimensional layout. But many layouts seem like they could be done with either. Is there a rule of thumb for choosing?

Q3 — Why does !important feel like cheating?¶

Asked: 2026-06-09 Status: unanswered

Whenever I add !important to a rule it works, but experienced developers seem to discourage it. Why is it bad and when (if ever) is it appropriate?

Q4 — What is a CSS reset and do I need one?¶

Asked: 2026-06-09 Status: unanswered

I see mentions of CSS resets like normalize.css and modern-normalize. What problem do they solve and should I always use one?

Q5 — How do I debug CSS that isn't applying?¶

Asked: 2026-06-09 Status: unanswered

Sometimes I write a CSS rule and nothing happens. What is a systematic approach to figure out why a rule is being ignored?