CSS

Question 1

What are the names of the individual pieces of a CSS rule?

Answer 1

selector, declaration block, block has property value pairs

Question 2

In CSS, how do you select elements by their class attribute?

Answer 2

. (dot)

Question 3

In CSS, how do you select elements by their type?

Answer 3

element name

Question 4

In CSS, how do you select an element by its id attribute?

Answer 4

(pound or hashtag)

Question 5

Name three different types of values you can use to specify colors in CSS.

Answer 5

Color keyword, RGB color value, hexadecimal color value

Question 6

What CSS properties make up the box model?

Answer 6

border, margin, padding, and the content (which incorporates width & height)

Question 7

Which CSS property pushes boxes away from each other?

Answer 7

margin

Question 8

Which CSS property add space between a box’s content and its border?

Answer 8

padding

Question 9

Which CSS property add space between a box’s content and its border?

Answer 9

padding

Question 10

What is a pseudo-class?

Answer 10

class that applies to an element in a certain state

Question 11

What are CSS pseudo-classes useful for?

Answer 11

event based styling

Question 12

Name at least two units of type size in CSS.

Answer 12

pixels and rem

Question 13

What CSS property controls the font used for the text inside an element?

Answer 13

font-family

Question 14

What is the default flex-direction of a flex container?

Answer 14

row

Question 15

What is the default flex-wrap of a flex container?

Answer 15

nowrap

Question 16

Why do two div elements “vertically stack” on one another by default?

Answer 16

because they’re block-level elements

Question 17

What is the default flex-direction of an element with display: flex?

Answer 17

row

Question 18

How does setting position: relative on an element affect document flow?

Answer 18

does not affect document flow (doesn’t really ruin stuff)

Question 19

How does setting position: relative on an element affect where it appears on the page?

Answer 19

will move in relation to its static original spot

Question 20

How does setting position: absolute on an element affect document flow?

Answer 20

removed from document flow

Question 21

How does setting position: absolute on an element affect where it appears on the page?

Answer 21

gets positioned with the nearest nonstatic ancestor

Question 22

How do you constrain an absolutely positioned element to a containing block?

Answer 22

set nonstatic value

Question 23

What are the four box offset properties?

Answer 23

top left bottom right

Question 24

What are the four components of “the Cascade”?

Answer 24

source order, inheritance, specify, and !important

Question 25

What does the term “source order” mean with respect to CSS?

Answer 25

order
The order CSS property sets the order to lay out an item in a flex or grid container. Items in a container are sorted by ascending order value and then by their source code order.

Source: https://developer.mozilla.org/en-US/docs/Web/CSS/order

Question 26

How is it possible for the styles of an element to be applied to its children as well without an additional CSS rule?

Answer 26

inheritance

Question 27

List the three selector types in order of increasing specificity.

Answer 27

name, class, id

Question 28

Why is using !important considered bad practice?

Answer 28

!important essentially ruins everything; !important is hard to overwrite

the only way to supersede !important is with JavaScript

Question 29

What does the transform property do?

Answer 29

change how the element will visually represent itself on the page

Question 30

Give four examples of CSS transform functions.

Answer 30

rotate, skew, matrix, and translate

Question 31

The transition property is shorthand for which four CSS properties?

Answer 31

property, duration, timing, delay

Question 32

Give two examples of media features that you can query in an @media rule.

Answer 32

min-width & max-width

Question 33

What is a breakpoint in responsive Web design?

Answer 33

point where the media query takes effect

Question 34

What is the advantage of using a percentage (e.g. 50%) width instead of a fixed (e.g. px) width for a “column” class in a responsive layout?

Answer 34

you wouldn’t have to do media queries for every pixel value overall

Question 35

If you introduce CSS rules for a smaller min-width after the styles for a larger min-width in your style sheet, the CSS rules for the smaller min-width will “win”. Why is that?

Answer 35

due to source order

media queries are reliant on source order