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CSS Interview Questions

70+ most important CSS interview questions covering layouts, animations, responsive design, specificity, and creating engaging interfaces.
Solved by ex-interviewers
Test cases
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Questions List

CSS Interview GuidesExplore our starter guides to get a solid grasp of CSS interview prep before jumping into practice.
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GUIDES
  • AccordionBuild an accordion component that a displays a list of vertically stacked sections with each containing a title and content snippet
    Available frameworks
  • Holy GrailBuild the famous holy grail layout consisting of a header, 3 columns, and a footer
    Available frameworks
  • Progress BarsBuild a list of progress bars that fill up gradually when they are added to the page
    Available frameworks
  • TabsBuild a tabs component that displays a list of tab elements and one associated panel of content at a time
    Available frameworks
  • ClassnamesImplement a function that conditionally joins CSS class names together
    Languages
  • Dice RollerBuild a dice roller app that simulates the results of rolling 6-sided dice
    Available frameworks
  • getElementsByStyleImplement a function to get all DOM elements that are rendered using the specified style
    Languages
  • Like ButtonBuild a Like button that changes appearance based on the states
    Available frameworks
  • Modal DialogBuild a reusable modal dialog component that can be opened and closed
    Available frameworks
  • Star RatingBuild a star rating component that shows a row of star icons for users to select the number of filled stars corresponding to the rating
    Available frameworks
  • Traffic LightBuild a traffic light where the lights switch from green to yellow to red after predetermined intervals and loop indefinitely
    Available frameworks
  • Digital ClockBuild a 7-segment digital clock that shows the current time
    Available frameworks
  • getElementsByClassNameImplement a function to get all DOM elements that contain the specified classes
    Languages
  • Tic-tac-toeBuild a tic-tac-toe game that is playable by two players
    Available frameworks
  • Image CarouselBuild an image carousel that displays a sequence of images
    Available frameworks
  • Job BoardBuild a job board that displays the latest job postings from Hacker News
    Available frameworks
  • StopwatchBuild a stopwatch widget that can measure how much time has passed
    Available frameworks
  • Transfer ListBuild a component that allows transferring of items between two lists
    Available frameworks
  • jQuery.cssPremiumImplement a jQuery-like function that sets the style of a DOM element
    Languages
  • Progress BarPremiumBuild a progress bar component that shows the percentage completion of an operation
    Available frameworks
  • TweetPremiumBuild a component that resembles a Tweet from Twitter
    Available frameworks
  • Analog ClockPremiumBuild an analog clock where the hands update and move like a real clock
    Available frameworks
  • Grid LightsPremiumBuild a grid of lights where the lights deactivate in the reverse order they were activated
    Available frameworks
  • jQuery Class ManipulationPremiumImplement a set of jQuery-like functions that manipulates classes on a DOM element
    Languages
  • Modal Dialog IIPremiumBuild a semi-accessible modal dialog component that has the right ARIA roles, states, and properties
    Available frameworks
  • Progress Bars IIPremiumBuild a list of progress bars that fill up gradually in sequence, one at a time
    Available frameworks
  • Tabs IIPremiumBuild a semi-accessible tabs component that has the right ARIA roles, states, and properties
    Available frameworks
  • Progress Bars IIIPremiumBuild a list of progress bars that fill up gradually concurrently, up to a limit of 3
    Available frameworks
  • Birth Year HistogramPremiumBuild a widget that fetches birth year data from an API and plot it on a histogram
    Available frameworks
  • Connect FourPremiumBuild a game for two players who take turns to drop colored discs from the top into a vertically suspended board/grid
    Available frameworks
  • Image Carousel IIPremiumBuild an image carousel that smoothly transitions between images
    Available frameworks
  • Pixel ArtPremiumBuild a pixel art drawing tool where users can paint pixels with selected colors
    Available frameworks
  • Users DatabasePremiumBuild a UI to filter, create, update, and delete users
    Available frameworks
  • Whack-A-MolePremiumBuild a popular arcade game where players attempt to hit moles as they pop up from holes in a board
    Available frameworks
  • Memory GamePremiumBuild a memory game where the player needs to match pairs of cards
    Available frameworks
  • Auth Code InputPremiumBuild an auth code input component that allows users to enter a 6-digit authorization code
    Available frameworks
  • Classnames IIPremiumImplement a function that conditionally joins CSS class names together and also handles de-duplication and function values
    Languages
  • Progress Bars IVPremiumBuild a list of progress bars that fill up gradually concurrently, up to a limit of 3 and allows for pausing and resuming
    Available frameworks
  • Image Carousel IIIPremiumBuild an image carousel that smoothly transitions between images that has a minimal DOM footprint
    Available frameworks
  • Selectable CellsPremiumBuild an interface where users can drag to select multiple cells within a grid
    Available frameworks
  • Tic-tac-toe IIPremiumBuild an N x N tic-tac-toe game that requires M consecutive marks to win
    Available frameworks
  • Transfer List IIPremiumBuild a component that allows transferring of items between two lists, bulk selection/unselection of items, and adding of new items
    Available frameworks
  • WordlePremiumBuild Wordle, the word-guessing game that took the world by storm
    Available frameworks

CSS Interview Questions and Answers

Are you tired of poor-quality CSS interview question lists that offer nothing but vague questions and answers? Discover the ultimate resource for CSS interview preparation with our high-quality list of over 74 CSS interview questions and answers.

Curated and answered by ex-FAANG interviewers, our collection of must-know CSS interview questions ensures you're prepared for any kind of interview you may face. Each question also comes with example solutions and comprehensive, automated test cases so that you always know how to improve within seconds.

Our list contains two large categories of questions - the CSS coding interview questions and CSS quiz interview questions.

CSS Coding Interview Questions

Master essential CSS techniques and interview patterns by practicing with our list of well-curated CSS coding interview questions. From implementing responsive layouts, creating animations, and handling cross-browser compatibility, to writing maintainable and scalable CSS, we offer numerous practice questions with example answers (solved with code).

Additionally, we provide an in-browser coding workspace, allowing you to style directly in the browser with no setup required. Run your styles against our automated test cases and know if they're accurate within seconds. Moreover, you can further improve your styles and adapt best practices from the well-explained solutions we provide, written by credible and revered former big tech senior/staff engineers.

CSS Quiz Interview Questions

CSS interview trivia questions generally test your CSS know-how and fundamentals. We have the top 31 questions that are commonly asked in such interviews, including important topics like specificity, the box model, flexbox, grid, and responsive design. Again, we provide good answers to these questions written by ex-interviewers.