CSS

Question 1

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

Answer 1

A CSS rule consists of a selector, an opening curly bracket for the declaration block, properties and their associated values, and the closing curly bracket for the declaration bracket.

Question 2

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

Answer 2

To select a class, you need to use a . character in front of the name of the class.

Question 3

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

Answer 3

To select a particular type, you simply write the type name followed by the declaration block.

Question 4

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

Answer 4

To select an element but its id attribute, you need to use a # character in front of the name of the id.

Question 5

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

Answer 5

color, background-color, border-color

Question 6

What CSS properties make up the box model?

Answer 6

margins, border, padding, and the content inside the box.

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

The pseduo-class is a character (:keyword) that is added to a selector that specifies a special state of the selected element.

Question 10

What are CSS pseudo-classes useful for?

Answer 10

It allows you to stylize an element that has a focus placed upon it. Such as hovering over or clicking on an element.

Question 11

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

Answer 11

px, 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

Horizontal

Question 14

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

Answer 14

The default flex-wrap of a flex container is no wrap

Question 15

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

Answer 15

They vertically stack due to being block-level elements.

Question 16

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

Answer 16

The default flex-direction is row.

Question 17

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

Answer 17

The default value for the position value is: position: static.

Question 18

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

Answer 18

It does not affect documents flow but allows you to move the position of an element using offset values.

Question 19

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

Answer 19

The element is positioned relative to where it would be in a normal document flow.

Question 20

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

Answer 20

Surrounding elements ignore the absolute positioned element. Document flow is unaffected.

Question 21

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

Answer 21

The element is placed relative to where it is in its containing element, so make sure the containing element is set to relative also. It will go back to the first HTML element that is not static.

Question 22

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

Answer 22

You need to set the containing block to position: relative.

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, and !imporant

Question 25

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

Answer 25

The visual order of the CSS selectors.

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

By using inheritance

Question 27

List the three selector types in order of increasing specificity.

Question 28

Why is using !important considered bad practice?

Question 29

What are the four components of “the Cascade”.

Answer 29

Source Order, Specificity, Inheritance, and !important

Question 30

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

Answer 30

The 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 31

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

Answer 31

Inheritance

Question 32

List the three selector types in order of increasing specificity.

Answer 32

Inline, Id, Class,

Question 33

Why is using !important considered bad practice?

Answer 33

Because it has side-effects that mess with CSS’s core mechanism: specificity.

Question 34

What does the transform property do?

Answer 34

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 35

Give four examples of CSS transform functions.

Answer 35

rotate, scale, skew, translate

Question 36

The transition property is shorthand for which four CSS properties?

Answer 36

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

Question 37

What is a breakpoint in responsive Web design?

Answer 37

A breakpoint in a responsive design is the “point” at which a website’s content and design will adapt in a certain way in order to provide the best possible user experience.

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

It allows for responsive design when dealing with various display widths.

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

Specificity