CSS

Question 1

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

Answer 1

selector, declaration, and inside declaration are 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

color keywords, RGB, hex value

Question 6

What CSS properties make up the box model?

Answer 6

margins, borders, padding, width, height

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

keyword added to a selector that specifies a special state of the selected element

Question 10

What are CSS pseudo-classes useful for?

Answer 10

applying styling under the influence of external factors (user interaction, html structure (eg striped table), etc)

Question 11

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

Answer 11

pixels, 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 (left to right)

Question 14

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

Answer 14

nowrap (default): all flex items will be on one line

Question 15

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

Answer 15

because they’re block elements

Question 16

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

Answer 16

row, left to right

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

you can make changes to the element itself, but the neighboring elements is not affected

Question 19

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

Answer 19

same

Question 20

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

Answer 20

it removes other elements to take that absolute position

Question 21

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

Answer 21

defaults to top left of the boundary (which is set by the ancestor element having relative position)

Question 22

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

Answer 22

by setting an ancestor element as relative (or anything other than static)

Question 23

What are the four box offset properties?

Answer 23

top, bottom, left, right

Question 24

What are the four components of “the Cascade”.

Answer 24

Source Order, Inheritance, !Important, Specificity

Question 25

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

Answer 25

Source order is, simply put, 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

Through Inheritance

Question 27

List the three selector types in order of increasing specificity.

Answer 27

Element type, class, id

Question 28

Why is using !important considered bad practice?

Answer 28

Makes it hard for debugger to track

Question 29

What does the transform property do?

Answer 29

modifies coordinate space of the CSS - lets you rotate, scale, skew, or translate an element

Question 30

Give four examples of CSS transform functions.

Answer 30

rotate, matrix, scale, translate

Question 31

The transition property is shorthand for which four CSS properties?

Answer 31

The transition CSS property is a shorthand property for transition-property, transition-duration, transition-timing-function, and transition-delay.

Question 32

What is a breakpoint in responsive Web design?

Answer 32

some point at which the media styling changes

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?

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

due to source order