CSS

Question 1

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

Answer 1

Selector, declaration block, properties

Question 2

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

Answer 2

By including a . before the selector

Question 3

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

Answer 3

By using the element names

Question 4

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

Answer 4

By including a # before the selector

Question 5

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

Answer 5

RGB, Hex and Color names

Question 6

What CSS properties make up the box model?

Answer 6

Border, margin and padding

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? A class applied to an element by the browser in a special circumstance.

Answer 9

They can change the appearance of elements when users are interacting with them

Question 10

What are CSS pseudo-classes useful for?

Answer 10

Applying styling based on user actions. Style to an element in relation to the content to the document tree and other like the history (visited), status (checked) or position (hover)

Question 11

Name at least two units of type size in CSS.

Answer 11

Pixels, percentages, 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

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

Does not affect

Question 19

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

Answer 19

Move it in relation to where it would have been on the page

Question 20

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

Answer 20

Does affect

Question 21

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

Answer 21

It is removed from the document flow entirely

Question 22

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

Answer 22

Using position: relative

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 and !important

Question 25

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

Answer 25

The last css rule set in your stylesheet will be 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

Using inheritable properties

Question 27

List the three selector types in order of increasing specificity.

Answer 27

It makes debugging more difficult

Question 28

List the three selector types in order of increasing specificity.

Answer 28

It overrides specificity and it makes debugging more difficult

Question 29

What does the transform property do?

Answer 29

Rotates, scale, skew or translate the object

Question 30

Give four examples of CSS transform functions.

Answer 30

Translate, rotate, skew, scale

Question 31

The transition property is shorthand for which four CSS properties?

Answer 31

Transition-delay, transition-duration, transition-property, transition-timing-function

Question 32

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

Answer 32

Min-width, max-width

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

The points at which the width of the viewport changes (where @media is applied)

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

It sizes accordingly to the width of the screen

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 source order