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CSS interview questions and tests

CSS is a style sheet language designed to describe the appearance of a document created using a markup language, for example, HTML, XHTML or other XML-based languages. Using our CSS interview questions and tests you can verify the skills of web designers and web programmers, regardless of the preferred programming language (PHP, Perl, Java).

The level of questions of DevSkiller CSS interview questions and programming tasks varies from Junior to Senior. In order to pass all the questions and tasks, your candidate has to have the knowledge of some markup language, for example, HTML (HyperText Markup Language) and the basics of developing applications for the web.

Technologies covered:

Programming language: HTML, CSS

Java frameworks and libraries: Bootstrap, Foundation

Build tools: NPM

JavaScript
SENIOR
Tested skills
Duration
57 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of ES6, JavaScript, HTML, CSS, Accessibility

Programming task - Level: Hard

JavaScript | Functional memoization - Write the two versions of generic memoization mechanism.

PHP
MIDDLE
Tested skills
Duration
60 minutes max.
Evaluation
Automatic
Test overview

Code gaps

assessing knowledge of SQL

Choice questions

assessing knowledge of ES6, JavaScript, CSS, HTML, WCAG 2.0, Web Accessibility

Programming task - Level: Medium

PHP | Categories Repository - Implement PDO queries that will return valid results about movies to users.

HTML
SENIOR
Tested skills
Duration
133 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of AJAX, JavaScript, Web development, ES6, Typescript, CSS, HTML

Programming task - Level: Hard

JavaScript | Social Media Queries | Find friends by name - Implement a function to find user's friends by their name.

Programming task - Level: Hard

CSS/HTML - Flexbox navigation bar - Complete CSS definition and use Flexbox to layout components.

PHP
JUNIOR
Tested skills
Duration
41 minutes max.
Evaluation
Automatic
Test overview

Code gaps

assessing knowledge of SQL, CSS, HTML

Choice questions

assessing knowledge of JavaScript

Programming task - Level: Easy

PHP | Faker | Basic data manipulation - Implement all the methods in the app/Faker class.

Python
MIDDLE
Tested skills
Duration
168 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of CSS, HTML

Programming task - Level: Medium

Python | Django | Leave request application | Basic CRUD - Complete an application for managing employee leave requests using Django Framework.

Programming task - Level: Medium

JavaScript | Social Media Queries | Find potential likes - Implement a function to find books which are considered as potential likes.

Python
JUNIOR
Tested skills
Duration
65 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of CSS, HTML

Programming task - Level: Easy

Python | Django | Currency Exchange Service - Finish implementation of Django application for currency exchange by modyfing CBV views and completing service logic.

Programming task - Level: Easy

JavaScript | Orders analyzer | Find an average ordered quantity for every weekday - Implement a method that will analyze orders dataset and return a map with average ordered quantity of a product for every weekday.

JavaScript
MIDDLE
Tested skills
Duration
95 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of CSS, HTML

Programming task - Level: Medium

JavaScript | Orders Analyzer | Find an average order value for every weekday - Implement a method which will return a map with a name of day of week as a key and an average total order value.

Programming task - Level: Medium

HTML/CSS - Flexbox navigation bar - Complete CSS definition and use Flexbox to layout components

AngularJS
MIDDLE
Tested skills
Duration
173 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of HTML and CSS

Programming task

assessing skills in JavaScript focused on Functional programming fundamentals

Programming task

assessing skills in jQuery by asking the developer to debug some jQuery code

Programming task

assessing skills in AngularJS by asking the developer to debug some AngularJS code

Code gaps

verify the most esstential skills in Git by asking the developer to complete a few commands

Python
MIDDLE
Tested skills
Duration
40 minutes max.
Evaluation
Automatic
Test overview

Programming task - Level: Medium

Python | Bookstore Inventory Application - Finish the implementation of the CRUD functionality using CBV.

Choice questions

assessing knowledge of HTML, WCAG 2.0, Web Accessibility, CSS

In addition, check out these JavaScript programming questions.

CSS interview questions

DevSkiller prepares CSS interview questions to aid recruiters in hiring CSS developers. Our tests present developer candidates with CSS challenges that are structured to accurately screen their CSS skills and find the right candidate for the role. DevSkiller prepares CSS interview questions for experienced candidates, as well as mid-level and junior developers.

DevSkiller CSS interview questions are unique in that they are powered by the RealLifeTesting™ methodology. RealLifeTesting™replicates the real-world scenarios CSS developers encounter in their everyday work, and presents them with appropriate CSS tasks to work on. DevSkiller CSS interview questions can save you time and money in your search for a new CSS developer.

Recommended roles for our CSS interview questions

  • Web developer
  • Front end developer
  • Full-stack developer
  • CSS developer
  • Junior front end developer
  • Middle front end developer
  • Senior front end developer
  • Graphic designer

How DevSkiller CSS interview questions work

Our CSS interview questions allow recruiters to analyze an applicant’s CSS skills, within a predetermined test environment. RealLifeTesting™ allows developers to accurately demonstrate their CSS knowledge, coding ability, problem-solving, and time-management skills.  RealLifeTesting™ offers a much more accurate way of assessing developers than traditional algorithmic tests. One of the great additional benefits of DevSkiller testing is that tests are carried out remotely, saving time and money.

Key features

  • Analyze coding ability and not just academic ability
  • CSS interview questions are accessed remotely saving time and money
  • The RealLifeTesting™ methodology offers a greater user experience where candidates can use their own IDE, clone to GIT, run unit tests, and access Stack Overflow/Github/Google for research.
  • Anti-plagiarism tools ensure test accuracy
  • Observe tests in real-time
  • Automated results that non-technical recruiters can understand
  • Tests available for junior, middle, and senior-level positions

Skills covered with DevSkiller CSS interview questions

  • CSS
  • ES6
  • Functional
  • Html
  • JavaScript
  • Accessibility
  • WCAG 2.0
  • Web Accessibility
  • PDO
  • AJAX
  • Promises
  • Web development

What to look for in a CSS developer

CSS (Cascading Style Sheets) provides a standard definition for how elements on a page appear. This allows developers to define a standard look on a page so that whenever they create a new element, all of the same design standards remain intact. This means that new elements like colors and fonts, will be consistent across the page. CSS and HTML together make up much of the bulk of the World Wide Web, so your developer needs to know more than just the basic CSS skills.

The basics of CSS are actually quite simple, but some areas require extra effort. For instance, basic coding in CSS is easy, but it can be time-consuming, so frameworks are in place to speed up the process. Your CSS developer will need to have a good knowledge of these frameworks. The most popular Frameworks are Bootstrap (v4) and Foundation (latest version 6).

Your candidate should also be up to date with the latest version of CSS and should be aware of the modules and new selectors introduced in CSS 3.

It is vital that your CSS developer is knowledgeable when it comes to various aspects of the front end tech stack, other than the frameworks listed above. This includes knowledge of the CSS preprocessors, tooling, and CSS animations. It will also be beneficial if they can tell you a little about the CSS Flexbox model, CSS grid, and CSS Box model, all varying components that make up the knowledge of any good CSS developer.

Like what you see but want more?

It is perfectly acceptable to think that DevSkiller CSS interview questions sound great, but to still want to get more out of them. Maybe you want to test your applicants with your own custom made CSS interview questions? No problem.

The DevSkiller online task wizard comes prepared with default settings and ready to take CSS  CSS interview questions, but you can also build your own customizable tests. This option allows you to take DevSkiller testing further. You can choose the languages you assess, allocate a specific time limit, and even set the difficulty level of each question about CSS.

Want proof that CSS interview questions work?

It can be nerve-wracking deciding the best way to invest your company’s money, after all, investment in our screening tool is a big decision for every business. If you’re still unsure, read what some of our customers have to say:

Julien Gauthiez – Talent Acquisition Manager EMEA at Criteo

“We use DevSkiller in 15 locations around our 3 regions (US/APAC/EMEA). We have 7 frequent users in TA (recruiters) across our regions, and our technical hiring manager users rotate depending on current needs. More than 30 have logged into the platform once to review an assignment or create a test.”

Richard Williams – VP of engineering at Plutora

“Thanks to automating the screening stage, we were able to reduce the interview rate by 50%. At the same time, the quality of candidates who make it to the interview stage is now much greater. DevSkiller adds an extra layer of quality to our technical hiring process”

Magdalena Rogóż – Deputy Marketing Manager at Kodilla

“Using DevSkiller to grade tests is 2 times more cost-efficient while giving our students a much better test and preparing them for future recruitment tests.”

Frequently asked questions

Do I need to be a programmer to use DevSkiller CSS interview questions?

Devskiller CSS interview questions are deliberately designed to be as simple to use as possible. Our aim is for non-technical recruiters to be able to efficiently hire developers to fill even the most experienced developer positions. Our CSS interview questions are prepared by our experts to allow non-technical users to send out tests and verify the CSS skills of candidates of any level of expertise.

What do you do about plagiarism?

At DevSkiller we take plagiarism seriously and take every precaution to make sure the results of our CSS interview questions are trustworthy. We implement a number of tools to assess candidates for cheating, including screen recording and a range of social listening tools. Our automatic plagiarism detector also checks the code a candidate has entered against previous answers in our database and if there is a match, it is because the candidate has cheated.

What do candidates think of our CSS interview questions?

At DevSkiller the feedback we receive from developer candidates for our online tests is overwhelmingly positive. Candidates love the structure of our tests and like that they are being given a chance to prove their actual CSS skills, rather than simply being tested on algorithms. Occasionally candidates can be a little apprehensive at first, but this is usually because they have taken academic algorithmic tests in the past, that don’t test the skills they use day to day and they expect DevSkiller testing to be similar. Once they realize the difference, they relish having the opportunity to show what they can do.

What’s the test duration?

The duration of each CSS test depends on your preferences. DevSkiller testing comes with in-built default settings, or if you prefer you customize your tests and set your own test duration. It is also possible to set time limits for individual questions within the tests themselves.