CSS Flashcards
What are the names of the individual pieces of a CSS rule?
selector {
property: value;
}
In CSS, how do you select elements by their class attribute?
.class-name {
property: value;
}
In CSS, how do you select elements by their type?
type-name {
property: value;
}
In CSS, how do you select an element by its id attribute?
#id-name {
property: value;
}Name three different types of values you can use to specify colors in CSS.
RGB, hex codes, and color names
What CSS properties make up the box model?
margin, border, 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 class that shows when the state of an element is changed
What are CSS pseudo-classes useful for?
They can be used to apply changes in CSS when the state of an element is changed.
Name two types of units that can be used to adjust font-size in CSS.
rem and pt
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 default as block elements, taking up the whole row.
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?
Initial position takes up space in the document flow, then offset properties are used to change final position which does not affect document flow.
How does setting position: relative on an element affect where it appears on the page?
position: relative itself does not change where it appears on the page. Once offset properties are applied, the element can be moved from its initial position to anywhere on the page without interfering with placement of other elements.
How does setting position: absolute on an element affect document flow?
setting position: absolute on an element will cause other elements to fill in the space of the absolute element
How does setting position: absolute on an element affect where it appears on the page?
setting position: absolute on an element could change the position of the element on the page depending on the position of its parent (whether it’s non-static or not). If non-static, the element can move to fit the offset properties based on the dimensions of either the nearest parent with non-static position or the body element itself.
How do you constrain an absolutely positioned element to a containing block?
Any non-static position property in the containing block will constrain
What are the four box offset properties?
top, left, right, bottom
What are the four components of “the Cascade”.
inheritance, source order, specificity, !important
What does the term “source order” mean with respect to CSS?
The order that the selectors appear in the css file
How is it possible for the styles of an element to be applied to its children as well without an additional CSS rule?
If the trait is inheritable, the styles will automatically be applied through inheritance
List the three selector types in order of increasing specificity.
type , class, id
Why is using !important considered bad practice?
It is very difficult to override
What does the transform property do?
It allows for physical alteration or moving of an element with the webpage space
Give four examples of CSS transform functions.
rotate, translate, scale, skew
The transition property is shorthand for which four CSS properties?
transition-property, transition-duration, transition-timing-function, and transition-delay
Give two examples of media features that you can query in an @media rule.
height, width, color
most common are min-width
check out Bootstrap
Which HTML meta tag is used in mobile-responsive web pages?
meta name=”viewport”
What is a breakpoint in responsive Web design?
The point in a design where content begins to trigger the media query to change format
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?
The content can scale up and down gradually as screen size increases, maintaining the intended format and layout for the page
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
