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Top 28 CSS Interview Questions and Answers

01/Oct/2020 | 10 minutes to read

QFLES is listing some Essential CSS Interview Questions and Answers for Freshers and mid level of Experienced Professionals prepared by Industry Experts. All answers for these CSS interview questions are given based on standard documents and tried to explain in simple and easiest way.


Best Answers to CSS Interview Questions

All these questions are targeted for UI developers, Front End developers or Web developers. You should have knowledge of these CSS interview questions to crack the interview.


1. In how many ways you can integrate CSS on a web page?

There are 3 ways in which we can integrate CSS on a web page.

  • Inline - it's element level using style attribute
  • Internal - it's in head section within style tags
  • External - it's using external style sheet file


    <span style="color:red;">It's inline style.</span>
    <style>
        .test {
            color: red;
        }
</style><span class="test">it's internal</span>
                    you can include external style sheet as following.
    <link href="https://fonts.googleapis.com/CSS?family=Noto+Sans:400" rel="stylesheet">

2. What is difference between display and visibility in CSS?

display and visibility both properties are used to hide the elements from DOM, but there is one difference.

display

This CSS property hides the element in DOM and remove that element's space from DOM.

visibility

This CSS property will hide the element but space for that element will be there in DOM.

3. How to replace the text using CSS? Or how to change content using CSS?

We can replace the text using pseudo elements as below. Here we will replace the below paragraph text.


    <span id="myPara" class="test" style="display:none;">Hello I am doing - </span>

    .test {
        color: red;
    }

    #myPara {
        visibility: hidden;
        position: relative;
    }

        #myPara:after {
            visibility: visible;
            position: absolute;
            top: 0;
            left: 0;
            content: "This text replaces the original text.";
        }

4. How to display html tags in html?

We can display html elements in html code using "xmp" and pre tags.
Example:


    <span id="myPara" class="test" style="display:none;">Hello I am doing - </span>

5. What is CSS media queries?

7. What is CSS pseudo classes?

8. What are the advantages and disadvantages of using CSS preprocessors?

9. Explain Responsive vs. Adaptive Design.

11. How to apply all font type in your application?

12. How to override bootstrap's existing CSS classes?

13. What is CSS transition property?

14. What is CSS float property?

15. What is the difference between CSS relative and absolute positions?

16. Explain CSS Selectors?

17. Explain cellpadding and cellspacing in CSS.

18. How to align a div to middle (horizontally center)?

19. How to remove black dots from li and ul using CSS?

20. How to make a div 100% height of the browser window via CSS?

21. How will you vertically align text next to an image?

22. How to disable a link using CSS?

23. What is float property in CSS?

24. What is !important in CSS?

24. What is content attribute in CSS?

24. What is !important in CSS?

24. What will be the structure of the selector - "#abc > ul.item li span + a"?

Some General Interview Questions for CSS

1. How much will you rate your self in CSS?

When you attend an interview, Interviewer may ask you to rate your self in specific Technology like CSS, So It's depend on your knowledge and work experience in CSS.

2. What challenges did you face while working on CSS?

This question may be specific to your technology and completely depends on your past work experience. So you need to just explain the challenges you faced related to CSS in your Project.

3. What was your role in last Project related to CSS?

It's based on your role and responsibilities assigned to you and what functionality you implemented using CSS in your project. This question is generally asked in every interview.

4. How much experience do you have in CSS?

Here you can tell about your overall work experience on CSS.

5. Have you done any CSS Certification or Training?

It's depend on candidate like you have done any CSS training or certification. Certifications or trainings are not essential but good to have.

Conclusion

We have covered some frequently asked CSS Interview Questions and Answers to help you for your Interview. All these Essential CSS Interview Questions are targeted for mid level of experienced Professionals and freshers.
While attending any CSS Interview if you face any difficulty to answer any question please write to us at info@qfles.com. Our IT Expert team will find the best answer and will update on portal. In case if we find any new CSS questions, we will update the same here.

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