CSS

Question 1

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

Answer 1

A selector and a declaration block made up of properties that have values.

Question 2

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

Answer 2

By using the CSS class selector which is a period (.) character, followed by the name of the class.

Question 3

In CSS, how do you select elements by their tag name?

Answer 3

By using the CSS selector that is the name of the element.

Question 4

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

Answer 4

By using the CSS id selector which is a hashtag (#) character, followed by the name of the id.

Question 5

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

Answer 5

RGB, HEX, Color names

Question 6

What CSS properties make up the box model?

Answer 6

Padding, margin, 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

A CSS pseudo-class is a keyword added to a selector that specifies a special state of the selected element(s). For example, the pseudo-class :hover can be used to select a button when a user’s pointer hovers over the button and this selected button can then be styled.

Question 10

What are CSS pseudo-classes useful for?

Answer 10

styling elements only under certain conditions

Question 11

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

Answer 11

px,

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

Question 15

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

Answer 15

They are block-level elements.

Question 16

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

Answer 16

Row, left to right.

Question 17

What are the three primary components of a page layout? (Which helper classes do you need?)

Answer 17

Container, Row, Column

Question 18

What is the minimum number of columns that you should put in a row?

Answer 18

1

Question 19

What is the purpose of a container?

Answer 19

to help style large chunks of content

Question 20

What is the default value for the position property of HTML elements?

Answer 20

Static

Question 21

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

Answer 21

The element is positioned according to the normal flow of the document, and then offset relative to itself based on the values of top, right, bottom, and left. The offset does not affect the position of any other elements; thus, the space given for the element in the page layout is the same as if position were static.

Question 22

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

Answer 22

The element is positioned according to the normal flow of the document, and then offset relative to itself based on the values of top, right, bottom, and left.

Question 23

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

Answer 23

Removes it from the document flow. Other items ignore it.

Question 24

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

Answer 24

it appears where the next ancestor that is position relative. otherwise the body

Question 25

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

Answer 25

Absolutely positioned elements position themselves within the first non-static ancestor they have.

Question 26

What are the four box offset properties?

Answer 26

Top, Bottom, Left, Right

Question 27

What are the four components of "the Cascade".

Answer 27

Source Order, Inheritance, Specificity & !important

Question 28

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

Answer 28

Source order is, simply put, the order that your CSS rules are written in your stylesheet.

Question 29

How is it possible for the styles of an element to be applied to its children as well without an additional CSS rule?

Answer 29

Inheritable properties

Question 30

List the three selector types in order of increasing specificity.

Answer 30

type, class, id

Question 31

Why is using !important considered bad practice?

Answer 31

Understanding and effectively using specificity and the cascade can remove any need for the !important flag.

Question 32

What does the transform property do?

Answer 32

The transform CSS property lets you rotate, scale, skew, or translate an element. It modifies the coordinate space of the CSS visual formatting model.

Question 33

Give four examples of CSS transform functions.

Answer 33

rotate, translate, scale, skew, matrix

Question 34

The transition property is shorthand for which four CSS properties?

Answer 34

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

Question 35

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

Answer 35

width, height, min-width, max-width

Question 36

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

Answer 36

viewport

Question 37

What is a breakpoint in responsive Web design?

Answer 37

The points at which a media query is introduced are known as breakpoints.

Question 38

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 38

different viewing devices have different screen sizes.

Question 39

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 39

Because it comes after, and css rules will read from top to bottom and the bottom one wins. SOURCE ORDER.