CSS

Question 1

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

Answer 1

selector and declaration block- within block is a property assigned a value (separated by semicolon)
ex) p {color:red}

Question 2

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

Answer 2

class attribute is .classname

Question 3

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

Answer 3

element name ex) h1, h2, body, p

Question 4

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

Answer 4

id attribute is #idname

Question 5

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

Answer 5

Hex code, rgb vaules, color names

Question 6

What CSS properties make up the box model?

Answer 6

margin, padding, border, content

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

classes applied by the browser under certain conditions [keyword added to a selector for when a special event occurs (hover, focus, active)]

Question 10

What are CSS pseudo-classes useful for?

Answer 10

apply style, user interaction

Question 11

Name at least two units of type size in CSS.

Answer 11

px, 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

because they are block elements

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

moves element in relation to where it would be in a normal document flow

Question 19

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

Answer 19

stays in same place unless value of top, bottom, left, right are changed

Question 20

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

Answer 20

taken out of flow, so other elements act as if its no longer there (on its own layer)

Question 21

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

Answer 21

sits on top of non-static ancestor (on its own layer)

Question 22

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

Answer 22

it needs to be on an element without a static position

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 you put rulesets in your styling sheet

styling that come later supersedes other

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 of parent element styles

Question 26

List the three selector types in order of increasing specificity.

Answer 26

type selectors, class selectors, ID selectors

Question 27

Why is using !important considered bad practice?

Answer 27

it makes debugging more difficult and breaks natural cascading in stylesheet

Question 28

What does the transform property do?

Answer 28

modifies the element

Question 29

Give four examples of CSS transform functions.

Answer 29

rotate, scale, skew, or translate an element

Question 30

The transition property is shorthand for which four CSS properties?

Answer 30

delay, duration. property, timing-function

Question 31

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

Answer 31

min-width max-width

Question 32

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

Answer 32

viewport

Question 33

What is a breakpoint in responsive Web design?

Answer 33

point where new styling changes occur (changing things based off of viewport/device width)

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

percentages are more flexible than px and easier to work with

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

cascading, source order