What is CSS cascade - Quick Revision & Key Takeaways

Recall & Review

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What does the CSS cascade mean?

The CSS cascade is the way the browser decides which CSS rules to apply when multiple rules target the same element. It follows a set of priorities to pick the winning style.

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Name the three main factors that affect the CSS cascade order.

The three main factors are: 1) Importance (like !important), 2) Specificity (how specific the selector is), 3) Source order (which rule comes last in the CSS).

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What is specificity in CSS cascade?

Specificity is a score that the browser gives to CSS selectors based on how specific they are. More specific selectors override less specific ones.

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How does the browser handle conflicting CSS rules with the same specificity?

If two rules have the same specificity, the browser applies the one that comes last in the CSS code (source order).

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What role does the !important declaration play in the CSS cascade?

The !important declaration makes a CSS rule override other rules, even if they have higher specificity or come later in the source order.

What does the CSS cascade help the browser decide?

A How to write CSS selectors

B How to load CSS files faster

C How to compress CSS code

D Which CSS rule to apply when multiple rules target the same element

The CSS cascade decides which CSS rule wins when multiple rules apply to the same element.

Which factor has the highest priority in the CSS cascade?

A !important declaration

B Specificity

C Source order

D Selector type

The !important declaration overrides other rules regardless of specificity or source order.

If two CSS rules have the same specificity, which one applies?

A The one that appears last in the CSS

B The one that appears first in the CSS

C The one with fewer selectors

D The one with more selectors

When specificity is equal, the rule that comes last in the CSS code wins.

What does specificity measure in CSS?

A The size of the CSS file

B How specific a selector is

C The color of the text

D The number of CSS properties

Specificity measures how specific a CSS selector is to determine priority.

Which of these selectors has the highest specificity?

A .button

B *

C #header

D button

ID selectors (#header) have higher specificity than class selectors (.button), element selectors (button), or universal selectors (*).

Explain how the CSS cascade decides which style to apply when multiple rules target the same element.

Think about rule importance, how specific selectors are, and the order of rules.

Describe what specificity means in CSS and why it matters in the cascade.

Consider how the browser scores selectors to pick the winning style.