css

Question 1

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

Answer 1

css selector and declaration / property and value

Question 2

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

Answer 2

with a . followed by class name

Question 3

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

Answer 3

by simply typing the type name followed by the declaration

Question 4

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

Answer 4

with a # followed by ID name

Question 5

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

Answer 5

Hex code, RDB, and color name

Question 6

What CSS properties make up the box model?

Answer 6

border, margin, 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?

Answer 9

a keyword that defines a special state of an element such as hover and focus

Question 10

What are CSS pseudo-classes useful for?

Answer 10

changing the style of an element under a certain condition. EX: when mouse hovers button, change background to a different color.

Question 11

Name at least two units of type size in CSS.

Answer 11

pixels, rem, em, and percentages

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

no-wrap

Question 15

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

Answer 15

because they are block level 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

it does not affect content flow.

Question 19

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

Answer 19

the element stays the same.

Question 20

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

Answer 20

Absolute pulls the element out of the normal flow and all other content ignores the elements existence

Question 21

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

Answer 21

the element will appear at the top left of its first not-static parent element

Question 22

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

Answer 22

by setting the containing block to position: relative and using the four box offset properties to position it relative to the containing block

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

Refers to the order of elements in a style sheet. The styling that comes last in a style sheet will take priority.

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. Adding on styling to the parent element will cause its children to inherit that styling in certain cases.

Question 27

List the three selector types in order of increasing specificity.

Answer 27

element, class, id.

Question 28

Why is using !important considered bad practice?

Answer 28

It makes debugging more difficult by breaking the natural cascading order in a stylesheet.

Question 29

What does the transform property do?

Answer 29

Transform property allows you to rotate, scale, skew, or translate an element.

Question 30

Give four examples of CSS transform functions.

Answer 30

Rotate, translateX, translateY, translateZ, scale

Question 31

The transition property is shorthand for which four CSS properties?

Answer 31

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

Question 32

What is a breakpoint in responsive Web design?

Answer 32

The points at which a media query is introduced

Question 33

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 33

It allows the web pages to be responsive rather than adaptive. The element will grow/shrink as the screen will grow/shrink.

Question 34

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 34

Cascade/source order.