CSS

Question 1

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

Answer 1

selector, declaration - property, value

Question 2

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

Answer 2

.class-name {

}

Question 3

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

Answer 3

element-name {

}

Question 4

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

Answer 4

#id-name {
}

Question 5

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

Answer 5

RGB Values: rgb(102,205,170)
Hex Codes: #66cdaa
Color Names: MediumAquaMarine

Question 6

What CSS properties make up the box model?

Answer 6

margin, border, padding, 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 keyword added to a selector that specifies a special state of the selected element(s).

Ex: hover

Question 10

What are CSS pseudo-classes useful for?

Answer 10

Pseudo-classes let you apply a style to an element not only in relation to the content of the document tree, but also in relation to external factors

Ex: the history of the navigator (:visited, for example), the status of its content (like :checked on certain form elements), or the position of the mouse (like :hover, which lets you know if the mouse is over an element or not).

Question 11

Name at least two units of type size in CSS.

Answer 11

Pixel, 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

they are block-level elements

Question 16

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

Answer 16

position: static

Question 17

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

Answer 17

Does not affect position of surrounding elements; they stay in position they would be in normal flow.

Question 18

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

Answer 18

doesn’t move until offset properties set; offset moves from the position it would be in normal flow

Question 19

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

Answer 19

taken out of normal flow, doesn’t affect position of surrounding elements (ignores space it would have taken up / as if it wasn’t there).

Question 20

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

Answer 20

position element in relation to its containing element

moves as user scrolls on page

Question 21

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

Answer 21

Absolutely positioned elements position themselves within the first non-static ancestor they have. The containing block has css property =====
position: relative;

Question 22

What are the four box offset properties?

Answer 22

top, bottom, left, right

Question 23

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

Answer 23

Row

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 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 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 Ex: color

When no value for an inherited property has been specified on an element, the element gets the computed value of that property on its parent element.

Question 27

List the three selector types in order of increasing specificity.

Answer 27

“Less Specific” –type selectors (h1), class selectors (.class-name), id selectors (#id-name) – “More Specific

Question 28

Why is using ‘!important’ considered bad practice?

Answer 28

It makes debugging more difficult by breaking the natural cascading in your stylesheets.

Question 29

What does the transform property do?

Answer 29

The transform CSS property lets you rotate, scale, skew, or translate an element.

Question 30

Give four examples of CSS transform functions.

Answer 30

rotate, scale, skew, translate

Question 31

The transition property is shorthand for which four CSS properties?

Answer 31

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

Question 32

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

Answer 32

width and height

Question 33

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

Answer 33

meta name=”viewport” content=”width=device-width, initial-scale=1”

Question 34

What is a breakpoint in responsive Web design?

Answer 34

The points at which a media query is introduced

EX: at certain width, layout changes

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

Don’t need to know exact px size of screen; fluid design

Fixed width won’t change in response to user changing viewport size. Percentages will adjust according to changing viewport size.

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

Source order. The last rule in the file will take priority in element styling.