CSS

Question 1

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

Answer 1

selector and declaration block

Question 2

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

Answer 2

by putting a . Infront of the name

Question 3

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

Answer 3

put the name of the element

Question 4

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

Answer 4

put a # Infront of the name

Question 5

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

Answer 5

rbg, hex, and name

Question 6

What CSS properties make up the box model?

Answer 6

border, padding and margin

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

What is a pseudo-class?

Answer 9

CSS pseudo-classes are used to add styles to selectors, but only when those selectors meet certain conditions.

Question 10

What are CSS pseudo-classes useful for?

Answer 10

A pseudo-class is used to define a special state of an element. For example, it can be used to: Style an element when a user mouses over it. Style visited and unvisited links differently.

Question 11

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

Answer 11

px and em

Question 12

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

Answer 12

font-property

Question 13

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

Answer 13

row

Question 14

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

Answer 14

nowrap

Question 15

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

Answer 15

they are designed to take up the entire width of the page so the next moves to the next line

Question 16

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

Answer 16

row

Question 17

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

Answer 17

static

Question 18

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

Answer 18

keeps its location but is now ignored by other elements

Question 19

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

Answer 19

keeps its location but is now ignored by other elements

Question 20

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

Answer 20

ignored by all elements of the page

Question 21

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

Answer 21

it sits on its own layer separate from everything else, bringing it to the top left start

Question 22

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

Answer 22

set the blocks position to relative

Question 23

What are the four box offset properties?

Answer 23

left, right, top, bottom

Question 24

What are the four components of “the Cascade”.

Answer 24

source order, inheritance, specificity, importance

Question 25

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

Answer 25

Items in a container are sorted by ascending order value and then by their source code 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

• , *.class, #id

Question 28

Why is using !important considered bad practice?

Answer 28

because it doesn’t play by the rules of cascading style sheets and makes things difficult to change because you have to overwrite importance.

Question 29

What does the transform property do?

Answer 29

applies a 2D or 3D transformation to an element

Question 30

Give four examples of CSS transform functions.

Answer 30

scale, matrix, rotate, translate

Question 31

The transition property is shorthand for which four CSS properties?

Answer 31

transition-property, transition-duration, transition-timing-function, transition-delay

Question 32

What is a breakpoint in responsive Web design?

Answer 32

where media rules start working, at what point the layout changes

Question 33

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 33

it allows for variance and makes boundaries that don’t need to be exact

Question 34

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 34

because of source order