CSS Flashcards
What are the names of the individual pieces of a CSS rule?
selector, declaration (property-value)
In CSS, how do you select elements by their class attribute?
.class
In CSS, how do you select elements by their type?
element {}
In CSS, how do you select an element by its id attribute?
id
Name three different types of values you can use to specify colors in CSS.
rgb values, hex codes, color names
What CSS properties make up the box model?
margins, borders, padding, and the actual content
Which CSS property pushes boxes away from each other?
margins
Which CSS property add space between a box’s content and its border?
padding
What is a pseudo-class?
keyword added to a selector that specifies a special state of the selected element
What are CSS pseudo-classes useful for?
:hover can be used to change a button’s color when the user’s pointer hovers over it
Name at least two units of type size in CSS.
absolute : px
relative: em, rem
What CSS property controls the font used for the text inside an element?
font-family:
What is the default flex-direction of a flex container?
row
What is the default flex-wrap of a flex container?
no wrap
Why do two div elements “vertically stack” on one another by default?
they are block elements
What is the default flex-direction of an element with display: flex?
row
What is the default value for the position property of HTML elements?
static
How does setting position: relative on an element affect document flow?
normal
How does setting position: relative on an element affect where it appears on the page?
same location
How does setting position: absolute on an element affect document flow?
removed from flow
How does setting position: absolute on an element affect where it appears on the page?
relative to a non-static ancestor
How do you constrain an absolutely positioned element to a containing block?
set the containing block to non-static
What does the transform property do?
adjust how elements are shown in the coordinate plane
Give four examples of CSS transform functions.
translate, scale, rotate, skew
The transition property is shorthand for which four CSS properties?
transition-property, transition-duration, transition-timing-function, and transition-delay.
What are the four components of “the Cascade”.
source order, inheritance, specificity, !important
What does the term “source order” mean with respect to CSS?
order the code is written
How is it possible for the styles of an element to be applied to its children as well without an additional CSS rule?
inheritance
List the three selector types in order of increasing specificity.
element < class < id
Why is using !important considered bad practice?
overrides specificity which is vital in the cascade
Give two examples of media features that you can query in an @media rule.
min-width, max-width
Which HTML meta tag is used in mobile-responsive web pages?
HTML Viewport meta tag
< meta name=”viewport” content=”width=device-width, initial-scale=1.0” >
What is a breakpoint in responsive Web design?
point at which browser changes styling
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?
if you change the parent row, the column scales accordingly
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?
source order and overwrites the other @ rule
