Top 28 CSS Interview Questions and Answers

11/Nov/2020 | 10 minutes to read

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Here is a List of essential CSS Interview Questions and Answers for Freshers and mid level of Experienced Professionals. All answers for these CSS questions are explained in a simple and easiest way. These basic, advanced and latest CSS questions will help you to clear your next Job interview.

CSS Interview Questions and Answers

All questions are targeted for CSS used by UI developers, Front End developers or Web developers. You must know the answers of these frequently asked CSS interview questions to clear 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

visibility

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?

Media queries was introduced in CSS 3 to apply different styles to different devices or screens. Media queries use @media rule to define styles. Media queries can check many things as below.

• Height and width of device
• Height and width of viewport
• orientation (Mobile or Tablet is in portrait mode or landscape)
• resolution
• Example: for browser screen with width of 600px or less

  
      @media screen and (max-width: 600px) {
      div.example {
      display: none;
      }
      }
  

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?

In CSS, !important property overrides the existing property values. It enforce more weight to a property and is applied at the end of line before semicolon. For example,

    .test{
    width:10px !important;
    width:20px;
    }
    // so here width will be 10px not 20px

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 yourself in CSS?

When you attend an interview, Interviewer may ask you to rate yourself in a specific Technology like CSS, So It's depend on your knowledge and work experience in CSS. The interviewer expects a realistic self-evaluation aligned with your qualifications.

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

The challenges faced while working on CSS projects are highly dependent on one's specific work experience and the technology involved. You should explain any relevant challenges you encountered related to CSS during your previous projects.

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

This question is commonly asked in interviews to understand your specific responsibilities and the functionalities you implemented using CSS in your previous projects. Your answer should highlight your role, the tasks you were assigned, and the CSS features or techniques you utilized to accomplish those tasks.

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?

Whether a candidate has completed any CSS certification or training is optional. While certifications and training are not essential requirements, they can be advantageous 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 the portal. In case we find any new CSS questions, we will update the same here.