CSS CSS Quality & Compliance 2

Question 1

Which tool is most commonly used to lint and enforce code quality rules in CSS?

Accepted Answer

Stylelint

Answer

Stylelint is the standard linter built specifically to catch errors and enforce conventions in CSS.

Question 2

What does the WCAG minimum contrast ratio of 4.5:1 apply to?

Accepted Answer

Normal-size text against its background

Answer

WCAG AA requires a 4.5:1 contrast ratio for normal text to ensure readability.

Question 3

Which practice improves CSS maintainability across a large codebase?

Accepted Answer

Using a consistent naming convention like BEM

Answer

A convention like BEM makes class names predictable and reduces conflicts in large projects.

Question 4

Why is overusing the !important declaration considered poor quality?

Accepted Answer

It breaks the natural cascade and is hard to override

Answer

!important overrides the cascade, making styles fragile and difficult to maintain.

Question 5

Which CSS feature helps reduce repetition and improve consistency of values?

Accepted Answer

Custom properties (CSS variables)

Answer

Custom properties let you define a value once and reuse it, ensuring consistency.

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