CSS Flashcards
What are the names of the individual pieces of a CSS rule?
Selector and Declaration (made of property:value pair)
In CSS, how do you select elements by their class attribute?
. (dot) followed by the class name
In CSS, how do you select elements by their type?
With the element name
In CSS, how do you select an element by its id attribute?
(hash) followed by id name
Name three different types of values you can use to specify colors in CSS
HEX code, RBG values, color names
What CSS properties make up the box model?
Content (with a width and height), padding, border and margin
Which CSS property pushes boxes away from each other?
Margin
Which CSS property add space between a box’s content and its border?
Padding
What is a pseudo-class?
Classes applied to elements in a specific state
What are CSS pseudo-classes useful for?
They are useful when styling elements based on a certain situation (event based styling)
Name at least two units of type size in CSS
Pixel, percentage, em
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?
Nowrap
Why do two div elements “vertically stack” on one another by default?
Because they are block level 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?
It doesn’t - everything still flows normally
How does setting position: relative on an element affect where it appears on the page?
It moves the element in relation to where it would have been in the normal flow
How does setting position:absolute on an element affect document flow?
The element gets removed from document flow.
How does setting position:absolute on an element affect where it appears on the page?
The element gets placed within its nearest non-static ancestor element (an ancestor with a relative position)
How do you constrain an absolutely positioned element to a containing block?
The parent element has to be set to position:relative
What are the four box offset properties?
Top, bottom, left, right
What are the four components of “the Cascade”?
o Order
o Inheritance
o Specificity
o !important
What does the term “source order” mean with respect to CSS?
The order that your CSS rules are written in your sheet, where the lowest CSS ruleset supersedes the ones above
How is it possible for the styles of an element to be applied to its children as well without an additional CSS rule?
Through inheritance (child elements receiving value from parent element)
List the three selector types in order of increasing specificity.
Type < class < id
Why is using !important considered bad practice?
It makes debugging more difficult by breaking the natural cascade in your stylesheet
What does the transform property do?
Modifies the coordinate space of CSS
Give four examples of CSS transform functions:
Rotate
Scale
Skew
Translate
The transition property is shorthand for which four CSS properties?
o Transition-property
o Transition-duration
o Transition-timing-function
o Transition-delay
Give two examples of media features that you can query in an @media rule
o min-width
o max-width
Which HTML meta tag is used in mobile-responsive web pages?
meta name=”viewport” content=”width=device-width, initial-scale=1”
What is a breakpoint in responsive Web design?
The point at where the styling changes (where the media query takes place)
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?
So as your viewport width changes, the calculations can adjust
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?
Because of the source order
