CSS

Question 1

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

Answer 1

selector; declaration with a property and value

Question 2

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

Answer 2

.classname

Question 3

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

Answer 3

match element name

Question 4

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

Answer 4

idname

Question 5

Three different types of values used to specify colors in CSS

Answer 5

RBG values, hex codes, color names

Question 6

What CSS properties make up the box model?

Answer 6

border, margin, padding, height, width

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 class applied by a browser that specifies a special state of the selected element

Question 10

What are pseudo classes useful for?

Answer 10

applying style to an element in relation to external factors or events made by the user

Question 11

Two types of units that can be used to adjust font-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 (left to right)

Question 14

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

Answer 14

nowrap (all flex items are on one line)

Question 15

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

Answer 15

div elements are block elements

Question 16

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

Answer 16

row (left to right)

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 stays the same

Question 19

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

Answer 19

it stays the same

Question 20

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

Answer 20

it gets removed from the document flow

Question 21

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

Answer 21

it gets positioned against non-static elements

Question 22

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

Answer 22

set property as not static

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

1. source order
2. inheritance
3. specificity
4. !important

Question 25

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

Answer 25

styling towards the bottom is stronger and therefore gets 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

inherited properties by default are set to the value of the parent element

Question 27

List the three selector types in order of increasing specificity

Answer 27

1. type selectors 2. class selectors 3. ID selectors

Question 28

Why is using !important considered bad practice?

Answer 28

it will make debugging more difficult by breaking natural cascade in stylesheet

Question 29

What does the transform property do?

Answer 29

lets you rotate, scale, skew, or translate an element by modifying the coordinate space

Question 30

Give four examples of CSS transform functions.

Answer 30

1. matrix 2. scale 3. rotate 4. skew

Question 31

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

Answer 31

1. min-width | 2. max-width

Question 32

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

Answer 32

viewport

Question 33

The transition property is shorthand for which four CSS properties?

Answer 33

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

Question 34

What is a breakpoint in responsive Web design?

Answer 34

the point at which you want to use media query to change design to cater to dimensions of different devices

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

more accurate because % is used to define size as relative to element's parent object

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

- specificity; CSS source order still applies | - avoid this by putting min-width in ascending order