25+ CSS and CSS3 Interview Questions for Web Designer

CSS and CSS3 Interview Questions for Web Designer

CSS Interview Questions

1. What is CSS?

CSS represents Cascading Style Sheet. It is a well known styling language which is utilized with HTML to plan sites. It can likewise be utilized with any XML reports including plain XML, SVG, and XUL.

2. What is the origin of CSS?

SGML (Standard Generalized Markup Language) is the inception of CSS. It is a language that characterizes markup dialects.

3. What are the different variations of CSS?

Following are the different variations of CSS:
  1. CSS1
  2. CSS2
  3. CSS2.1
  4. CSS3
  5. CSS4

4. How can you integrate CSS on a web page?

There are three techniques to coordinate CSS on site pages.

Inline technique - It is utilized to embed templates in HTML archive
Implanted/Internal technique - It is utilized to add a special style to a solitary report
Connected/Imported/External technique - It is utilized when you need to make changes on different pages.

5. What are the advantages of CSS?

  1. Bandwidth
  2. Site-wide consistency
  3. Page reformatting
  4. Accessibility
  5. Content separated from presentation

6. What are the limitations of CSS?

  1. Ascending by selectors is not possible
  2. Limitations of vertical control
  3. No expressions
  4. No column declaration
  5. Pseudo-class not controlled by dynamic behavior
  6. Rules, styles, targeting specific text not possible

7. What are the CSS frameworks?

CSS frameworks are the preplanned libraries which make easy and more standard compliant web page styling. The frequently used CSS frameworks are: -
  1. Bootstrap
  2. Foundation
  3. Semantic UI
  4. Gumby
  5. Ulkit

8. Why background and color are the separate properties if they should always be set together?

There are two purposes for this:
  1. It upgrades the clarity of templates. The foundation property is a perplexing property in CSS, and on the off chance that it is joined with shading, the unpredictability will additionally increment. 
  2. Shading is an acquired property while the foundation isn't. So this can make perplexity further.

9. What are the advantages of Embedded Style Sheets?

A general square is given to class selector while id selectors take just a solitary component contrasting from different components.

10. What are the advantages of External Style Sheets?

  1. You can make classes for reusing it in numerous archives. 
  2. By utilizing it, you can control the styles of numerous reports from one record. 
  3. In complex circumstances, you can utilize selectors and gathering techniques to apply styles.

11. What is the difference between inline, embedded and external style sheets?

Inline: Inline Style Sheet is used to style only a small piece of code.

12. What is RWD?

RWD represents Responsive Web Design. This strategy is utilized to show the structured page impeccably on each screen size and gadget, for instance, versatile, tablet, work area and workstation. You don't have to make an alternate page for every gadget.

13. What are the benefits of CSS sprites?

On the off chance that a site page has an extensive number of pictures that set aside a more drawn out opportunity to stack on the grounds that each picture independently conveys a HTTP ask. The idea of CSS sprites is utilized to decrease the stacking time for a site page since it joins the different little pictures into one picture. It lessens the quantity of HTTP asks for and subsequently the stacking time.

14. What is the difference between logical tags and physical tags?

  1. Physical labels are alluded to as presentational markup while consistent labels are futile for appearances. 
  2. Physical labels are more current variants, then again, sensible labels are old and focus on substance.

15. What is the CSS Box model and what are its elements?

The CSS box demonstrate is utilized to characterize the plan and design of components of CSS.
The components are:
  1. Edge - It evacuates the zone around the outskirt. It is straightforward. 
  2. Fringe - It speaks to the zone around the cushioning 
  3. Cushioning - It evacuates the zone around the substance. It is straightforward. 
  4. Content - It speaks to the substance like content, pictures, and so on.

16. What is the float property of CSS?

The CSS drift property is utilized to move the picture to one side or left alongside the writings to be folded over it. It doesn't change the property of the components utilized before it.

To comprehend its motivation and starting point, how about we investigate its print show. In the print show, a picture is set into the page with the end goal that content folds over it as required.

17. How to restore the default property value using CSS?

To put it plainly, there is no simple method to reestablish to default esteems to whatever a program employments.
The nearest choice is to utilize the 'underlying' property estimation, which reestablishes the default CSS values, instead of the program's default styles.

18. What is the purpose of the z-index and how is it used?

The z-file determines the stack request of situated components that may cover each other. The z-file default esteem is zero and can go up against either a positive or negative number.
  1. A component with a higher z-record is constantly stacked above than a lower list. 
  2. Z-Index can take the accompanying qualities: 
  3. Auto: Sets the stack request equivalent to its folks. 
  4. Number: Orders the stack request. 
  5. Beginning: Sets this property to its default esteem (0). 
  6. Acquire: Inherits this property from its parent component.

19. What do you understand by W3C?

W3C stands for World Wide Web Consortium. Its purpose is to deliver the information of the World Wide Web. It also develops rules and guidelines for the Web.

20. What is tweening?

  1. It is the way toward creating middle of the road outlines between two pictures. 
  2. It gives the feeling that the primary picture has easily developed into the second one. 
  3. It is an imperative technique utilized in a wide range of movements. 
  4. In CSS3, Transforms (framework, interpret, pivot, scale) module can be utilized to accomplish tweening.

21. What is the difference between CSS2 and CSS3?

The principle contrast somewhere in the range of CSS2 and CSS3 is that CSS3 is partitioned into various areas which are otherwise called modules. Dissimilar to CSS2, CSS3 modules are upheld by numerous programs.
Aside from that, CSS3 contains new General Sibling Combinators which is in charge of coordinating the kin components with the given components.