CSS

Question 1

What is the difference between classes and IDs in CSS?

Answer 1

• An element can have multiple classes
• Multiple elements can have the same class
• IDs should apply to only one element

Question 2

What’s the difference between “resetting” and “normalizing” CSS?

Answer 2

a

Question 3

Describe Floats and how they work.

Answer 3

a

Question 4

Describe z-index and how stacking context is formed.

Answer 4

a

Question 5

Describe BFC(Block Formatting Context) and how it works.

Answer 5

a

Question 6

What are the various clearing techniques and which is appropriate for what context?

Answer 6

a

Question 7

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

Answer 7

a

Question 8

What are your favourite image replacement techniques and which do you use when?

Answer 8

a

Question 9

How would you approach fixing browser-specific styling issues?

Answer 9

a

Question 10

How do you serve your pages for feature-constrained browsers?

Answer 10

a

Question 11

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

Answer 11

a

Question 12

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

Answer 12

a

Question 13

What are media queries?

Answer 13

a

Question 14

How do you style SVG?

Answer 14

a

Question 15

How do you optimize your webpages for print?

Answer 15

a

Question 16

What are some of the “gotchas” for writing efficient CSS?

Answer 16

a

Question 17

What are the advantages/disadvantages of using CSS preprocessors?

Answer 17

a

Question 18

How would you implement a web design comp that uses non-standard fonts?

Answer 18

a

Question 19

Explain how a browser determines what elements match a CSS selector.

Answer 19

a

Question 20

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

Answer 20

a

Question 21

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

Answer 21

a

Question 22

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

Answer 22

a

Question 23

List as many values for the display property that you can remember.

Answer 23

a

Question 24

What’s the difference between inline and inline-block?

Answer 24

a

Question 25

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

Answer 25

a

Question 26

The ‘C’ in CSS stands for Cascading. How is priority determined in assigning styles (a few examples)? How can you use this system to your advantage?

Answer 26

a

Question 27

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

Answer 27

a

Question 28

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

Answer 28

a

Question 29

How is responsive design different from adaptive design?

Answer 29

a

Question 30

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

Answer 30

a

Question 31

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

Answer 31

a