CSS

Question 1

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

Answer 1

the selector and the declaration

Question 2

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

Answer 2

with the period followed by the name

Question 3

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

Answer 3

with the elementname

Question 4

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

Answer 4

with the pound sign (#) followed by the name

Question 5

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

Answer 5

rgb, rgba, hsla, hex colors, color name

Question 6

What CSS properties make up the box model?

Answer 6

margins, border, padding, and actual 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 selector that specifies a special state of the selected element.

Question 10

What are CSS pseudo-classes useful for?

Answer 10

they let you apply style to elements in different states.

Question 11

How to read

table.striped thead > tr

Answer 11

rule set for tr elements that are direct children of thead in the table element with the striped class

Question 12

Name at least two units of type size in CSS.

Answer 12

pixels , percentage , em , rem

Question 13

What CSS property controls the font used for the text inside an element?

Answer 13

font-family

Question 14

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

Answer 14

row

Question 15

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

Answer 15

no wrap

Question 16

What are the four components of “the Cascade”.

Answer 16

source order, inheritance, specificity, !important

Question 17

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

Answer 17

the order they appear in the css style sheet

Question 18

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

Answer 18

inheritance

Question 19

List the three selector types in order of increasing specificity.

Answer 19

type selectors, class selectors, id selectors

Question 20

Why is using !important considered bad practice?

Answer 20

it breaks the natural cascading in your style sheets. overrides other declarations

Question 21

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

Answer 21

they are block elements that every new one starts on a new line

Question 22

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

Answer 22

the default flex-direction is: row

Question 23

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

Answer 23

position: static

Question 24

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

Answer 24

It does not affect the normal flow of other elements on the page

Question 25

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

Answer 25

Relative positioning moves an element in relation to where it would have been in normal flow. /it doesn't affect its position unless you change the position

Question 26

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

Answer 26

It affects the other elements as the other elements treat it as if it wasn't there. The absolute element is treated as if it wasn't there and the other elements take its position

Question 27

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

Answer 27

it now appears on its own layer and can be moved without affecting the other elements around it

Question 28

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

Answer 28

by setting the parents position to relative or a non-static position / though depending on what the parent is it changes how the parent shows up on the page

Question 29

What are the four box offset properties?

Answer 29

top , bottom , left , right

Question 30

What does the transform property do?

Answer 30

it lets you modify the html elements

Question 31

Give four examples of CSS transform functions.

Answer 31

rotate, scale, skew, translate

Question 32

The transition property is shorthand for which four CSS properties?

Answer 32

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

Question 33

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

Answer 33

max-width: min-width / orientation

Question 34

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

Answer 34

meta-viewport tag

Question 35

What is a breakpoint in responsive Web design?

Answer 35

CSS breakpoints are points where the website content responds according to the device width

Question 36

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 36

its more responsive and not fixed / apply to different screen sizes

Question 37

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 37

it is the last rule as in CSS it is cascading . In that the last rule is the one that wins