CSS

Question 1

What is the default value for the position property of HTML elements?

Answer 1

normal flow

Question 2

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

Answer 2

Position of the element would now be relative to the original normal flow position

Question 3

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

Answer 3

the space allotted for the original flow is maintained.

Question 4

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

Answer 4

the element is no longer part of the page

Question 5

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

Answer 5

it is positioned relative to the containing element

Question 6

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

Answer 6

the containing block must be set to relative

Question 7

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

Answer 7

hex codes, RGB values, color names

Question 8

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

Answer 8

css ruleset, css selector, declaration block, property-value pairs

Question 9

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

Answer 9

with a period eg .color

Question 10

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

Answer 10

just list the element eg h1 {

Question 11

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

Answer 11

with a # eg #jonathan {

Question 12

What CSS properties make up the box model?

Answer 12

Border
margin (distance between box and other object)
padding (space between the border of a box and any content created within it)
width
height

Question 13

Which CSS property pushes boxes away from each other?

Answer 13

margin

Question 14

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

Answer 14

padding

Question 15

What is a pseudo-class?

Answer 15

A CSS pseudo-class is a keyword added to a selector that specifies a special state of the selected element(s).

Question 16

What are CSS pseudo-classes useful for?

Answer 16

Changing the appearance of elements when users interact with them.

Question 17

Name two types of units that can be used to adjust font-size in CSS.

Answer 17

EM, PX

Question 18

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

Answer 18

font-family

Question 19

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

Answer 19

row

Question 20

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

Answer 20

no-wrap

Question 21

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

Answer 21

they are block level elements

Question 22

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

Answer 22

row

Question 23

What are the four components of “the Cascade”.

Answer 23

source order
inheritance
specificity
!important

Question 24

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

Answer 24

the order that your CSS rules are written in your stylesheet

Question 25

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

Answer 25

inheritance

Question 26

List the three selector types in order of increasing specificity.

Answer 26

``` type selectors (least specific) class selectors id selectors (most specific) ```

Question 27

Why is using !important considered bad practice?

Answer 27

it makes debugging more difficult by breaking the natural cascading

Question 28

What does the transform property do?

Answer 28

The transform CSS property lets you rotate, scale, skew, or translate an element. It modifies the coordinate space of the CSS visual formatting model.

Question 29

Give four examples of CSS transform functions.

Answer 29

``` matrix translate scale rotate skew ```

Question 30

The transition property is shorthand for which four CSS properties?

Answer 30

The transition CSS property is a shorthand property for transition-property, transition-duration, transition-timing-function, and transition-delay.

Question 31

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

Answer 31

color, device-width

Question 32

Which HTML meta tag is used in mobile-responsive web pages?

Answer 32

viewport meta tag

Question 33

What is a breakpoint in responsive Web design?

Answer 33

the point at which a media query is introduced

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

the value will always be half of the screen

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

source order