Top 25 CSS interview questions and Answers (2024): A Beginner-Friendly Guide

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What is CSS?

• CSS stands for Cascading Style Sheets. It’s used to control the appearance and layout of a web page, like changing colors, fonts, and spacing.

 

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What are the different ways to apply CSS to a webpage?

• CSS can be applied inline (within an element’s style attribute), internally (in a <style> tag inside the HTML), or externally (through a separate .css file linked via the <link> tag).

 

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• What is the difference between margin and padding?
  
  • margin creates space outside an element’s border, while padding creates space inside the border, between the content and the border.

 

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What is a CSS selector?

• A CSS selector is used to target and style HTML elements. For example, p {color: red;} targets all <p> tags and sets the text color to red.

 

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What are pseudo-classes in CSS?

• Pseudo-classes define the state of an element, like :hover when you hover over an element or :focus when an input field is focused.

 

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What is the box model in CSS?

• The box model represents the structure of an element: content, padding, border, and margin. Each part affects the size of the element.

 

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What is the difference between relative, absolute, and fixed positioning?

• relative positions an element relative to its normal position, absolute positions it relative to its nearest positioned ancestor, and fixed sticks it in place relative to the browser window.

 

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• What is Flexbox?
  
  • Flexbox is a layout module in CSS that makes it easier to design flexible, responsive layouts. It’s great for centering items or creating equal-width columns.