CSS

Question 1

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

Answer 1

selector, declaration body, property, value

Question 2

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

Answer 2

period then name

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 key then name

Question 5

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

Answer 5

color name, hex codes, rgb values

Question 6

What CSS properties make up the box model?

Answer 6

margin, border, padding

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

a keyword added to a selector that specifies a special state of the selected element(s) e.g. they are the first element of their type, or they are being hovered over by the mouse pointer

Question 10

What are CSS pseudo-classes useful for?

Answer 10

enables you to target an element when it’s in a particular state, such as when a user hovers over a link, the color and background-color of that link could be reversed

Question 11

Name at least two units of type size in CSS.

Answer 11

px, em, rem

Question 12

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

Answer 12

font-family

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

no wrap

Question 15

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

Answer 15

they are block elements by default

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

normal flow

Question 19

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

Answer 19

it’s still where it would normally would show up, it can just be adjusted up, down, left, right, from there

Question 20

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

Answer 20

it completely ignores document flow

Question 21

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

Answer 21

elements are removed entirely from the document flow and will overlap other content. That means they have no effect at all on their parent element or on the elements that occur after them in the source code.

Question 22

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

Answer 22

change the position of container to anything other than static

Question 23

What are the four box offset properties?

Answer 23

top, right, bottom, left

Question 24

What are the four components of “the Cascade”.

Answer 24

source order, inheritance, specificity, !important

Question 25

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

Answer 25

order the CSS rules are written, the last styling in the rules will be the one applied

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

type, class, id

Question 28

Why is using !important considered bad practice?

Answer 28

it overrides any previous styling done and disrupts the natural flow of CSS

Question 29

What does the transform property do?

Answer 29

Lets you rotate, scale, skew, or translate an element. Modifies the coordinate space of the CSS visual formatting model

Question 30

Give four examples of CSS transform functions.

Answer 30

rotate, scale, skew, or translate

Question 31

What is a breakpoint in responsive Web design?

Answer 31

mark where new styling will take effect that changes a websites content and design

Question 32

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 32

it scales based on the current size of the the container

Question 33

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 33

because of cascade facet, source order