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CSS interview questions

CSS interview questions.

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1.

Explain the three main ways to apply CSS styles to a web page

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2.

What is CSS?

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3.

How to use variables in Sass?

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4.

Explain CSS sprites, and how you would implement them on a page or site.

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5.

Explain the CSS “box model” and the layout components that it consists of

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6.

What is a CSS rule?

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7.

Explain what is a @extend directive used for in Sass?

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8.

Have you played around with the new CSS Flexbox or Grid specs?

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9.

What is DOM (Document Object Model) and how is it linked to CSS?

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10.

What is Sass?

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11.

What existing CSS frameworks have you used locally, or in production? How would you change/improve them?

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12.

Describe floats and how they work

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13.

What Selector Nesting in Sass is used for?

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14.

List out the key features for Sass?

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15.

What is the difference between classes and IDs in CSS?

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16.

List out the data types that Sass supports

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17.

What is variable interpolation in Sass? Provide some examples.

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18.

What's the difference between SCSS and Sass?

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19.

Explain the usage of "table-layout" property

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20.

What's the difference between a relative, fixed, absolute and statically positioned element?

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21.

Have you ever worked with retina graphics? If so, when and what techniques did you use?

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22.

What are the advantages/disadvantages of using CSS preprocessors?

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23.

How is responsive design different from adaptive design?

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24.

What is CSS selectors? Name some.

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25.

What does Accessibility (a11y) mean?

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26.

What is CSS preprocessor and why to user one?

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27.

How would you approach fixing browser-specific styling issues?

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28.

What’s the difference between “resetting” and “normalizing” CSS? Which would you choose, and why?

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29.

Explain your understanding of the box model and how you would tell the browser in CSS to render your layout in different box models.

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30.

Describe pseudo-elements and discuss what they are used for.

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31.

How does CSS actually work (under the hood of browser)?

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32.

What is a Grid System in CSS?

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33.

What is a Mixin and how to use on?

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34.

How to create a zebra striped table with CSS?

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35.

Explain the purpose of clearing floats in CSS

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36.

What does * { box-sizing: border-box; } do? What are its advantages?

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37.

Can you explain the difference between coding a website to be responsive versus using a mobile-first strategy?

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38.

Explain the basic rules of CSS Specificity

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39.

How do you optimize your webpages for print?

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40.

Have you ever used a grid system, and if so, what do you prefer?

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41.

What are the different ways to visually hide content (and make it available only for screen readers)?

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42.

Describe z-index and how a stacking context is formed

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43.

Is there any reason you'd want to use translate() instead of absolute positioning, or vice-versa? And why?

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44.

What the code fragment has the greater CSS specificity?

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45.

What will be the CSS output for the following Sass code?

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46.

What is the @content directive used for?

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47.

Write down a selector that will match any links end in .zip, .ZIP, .Zip etc...

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48.

How to style every element which has an adjacent item right before it?

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49.

What’s wrong with Sass nesting? Provide some example.

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50.

What clearfix methods do you know? Provide some examples.

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