CSS

Question 1

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

Answer 1

selector, declaration, property, value

Question 2

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

Answer 2

.class

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

id

Question 5

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

Answer 5

HEX, RGB, color name

Question 6

What CSS properties make up the box model?

Answer 6

margin, border, padding, content

Question 7

Which CSS property pushes boxes away from each other?

Answer 7

margin

Question 8

Which CSS property adds 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

Question 10

What are CSS pseudo-classes useful for?

Answer 10

let you apply a style to an element not only in relation to the content of the document tree but also in relation to external factors

Question 11

Name at least two types of units for font size in CSS.

Answer 11

pixels and ems

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

nowrap

Question 15

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

Answer 15

div elements are block element

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

doesn’t affect document flow

Question 19

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

Answer 19

nothing changes unless top, bottom, left, right values added

Question 20

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

Answer 20

no space is created for the element in the page layout and it does not affect the position
of any surrounding elements (as they simply ignore the space it would have taken up).

Question 21

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

Answer 21

element is removed from the normal document flow

Question 22

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

Answer 22

set parent position to relative

Question 23

What are the four box offset properties?

Answer 23

top, bottom, left, right

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 that your CSS rules are written in your stylesheet; the styling provided for an element last in your stylesheet is the styling that will ultimately take effect.

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

with inheritance

Question 27

List the three selector types in order of increasing specificity.

Answer 27

element type, class, ID

Question 28

Why is using !important considered bad practice?

Answer 28

it makes debugging more difficult by breaking the natural cascading of stylesheets

Question 29

What does the transform property do?

Answer 29

lets you rotate, scale, skew, or translate an element

Question 30

Give four examples of CSS transform functions

Answer 30

rotate(), translateY(),skew(),scale()

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

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

Answer 32

width and orientation

Question 33

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

Answer 33

viewport meta tag

Question 34

What is a breakpoint in responsive Web design?

Answer 34

points where the website breaks or doesn’t show desired output can be due to width, orientation, height

Question 35

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 35

pixel density can vary and percentages can be more flexible because no matter the screen size the width will always be 50%

Question 36

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 36

relys on source order