CSS Flashcards
What are the names of the individual pieces of a CSS rule?
selector, declaration block, property, values.
In CSS, how do you select elements by their class attribute?
With a dot at the beginning.
In CSS, how do you select elements by their type?
name of the element
In CSS, how do you select an element by its id attribute?
With a # (pound sign or hash) at the beginning.
Name three different types of values you can use to specify colors in CSS.
RGB, Hex codes, color name.
What CSS properties make up the box model?
Content, borders, margins, and padding.
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?
A CSS pseudo-class is a keyword added to a selector that specifies a special state of the selected element(s).
What are CSS pseudo-classes useful for?
Add special effects to some selectors.
Name two types of units that can be used to adjust font-size in CSS
pixels, percentages, ems
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?
A 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 elements.
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 affect.
How do you constrain an absolutely positioned element to a containing block?
Making the container other position than static.
What are the four box offset properties?
Left, right, top, bottom.
How is it possible for the styles of an element to be applied to its children as well without an additional CSS rule?
Inheritance is the process by which certain CSS properties on a child HTML element can receive value from a parent element, if no CSS for that property is directly declared on the child element.
What does the term “source order” mean with respect to CSS?
If you have more than one rule for an element, and all of them have exactly the same weight, so the last rule will win.
What are the four components of “the Cascade”.?
- Source order
- Inheritance
- Specificity
- !important
List the three selector types in order of increasing specificity.
- Type selector
- Class selector
- Id selector
Why is using !important considered bad practice?
Because you wouldn’t be respect the cascade properly. You would be overwriting and messing with the specificity.
Give four examples of CSS transform functions.
Matrix, translate, scale, rotate, skew.
What does the transform property do?
Lets you rotate, scale, skew, or translate an element. It modifies the coordinate space of the CSS visual formatting model.
The transition property is shorthand for which four CSS properties?
transition-property , transition-duration , transition-timing-function , transition-delay
Give two examples of media features that you can query in an @media rule.
width
height
Give two examples of media features that you can query in an @media rule.
width
height
Which HTML meta tag is used in mobile-responsive web pages?
Viewport meta tag.
What is a breakpoint in responsive Web design?
The points at which a media query is introduced
a point at which the layout will change
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?
It allows the web pages to be responsive rather than adaptive. The element will grow/shrink as the screen will grow/shrink.
Percentages can scale while pixels will always stay the same size.
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?
cascade/source order
