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

.name

Question 3

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

Answer 3

name {

Question 4

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

Answer 4

name

Question 5

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

Answer 5

RGB, #, Color Name, RGB-A (opacity)

Question 6

What CSS properties make up the box model?

Answer 6

width, height, padding, margin, border

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

interacting with different elements (add functionality and customization)

Question 10

What are CSS pseudo-classes useful for?

Answer 10

implementing on element such as specific number, odd, even

Question 11

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

Answer 11

pixel, rem, em, %

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 is a 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

It does not change page layout

Question 19

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

Answer 19

It does not affect anything

Question 20

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

Answer 20

It is removed entirely

Question 21

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

Answer 21

It considers the element to be removed entirely, could potentially change the whole layout

Question 22

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

Answer 22

put position:relative to the parent element

Question 23

What are the four box offset properties?

Answer 23

top, left, bottom, 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 CSS rules are written in the stylesheet (any style below will overrule the other)

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

makes debugging more difficult by breaking the natural cascading in stylesheets.

Question 29

What does the transform property do?

Answer 29

lets you rotate, scale, skew, or translate an element. IT modifies the coordinate space of the CSS.

Question 30

Give four examples of CSS transform functions.

Answer 30

rotate, matrix, scale, skew

Question 31

The transition property is shorthand for which four CSS properties?

Answer 31

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

Question 32

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

Answer 32

min height, max height

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

Breakpoint is where the media query rule works on.

It is the line where we choose to restructure the layout

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

Percentage takes the screen width into consideration; pixels are static and stay the same regardless of adjusting the screen size.

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

Because of CSS Cascade; specifically the source order component of the Cascade. Priority is given to CSS rules that are lower on the page.