How can you specify that an animation should run in reverse order?
- animation-direction: alternate;
- animation-play-state: reverse;
- animation-repeat: reverse;
- animation-reverse: true;
To make an animation run in reverse order, you should use the animation-direction property and set it to alternate. This will cause the animation to play in the reverse direction after each iteration, creating a back-and-forth effect.
In a CSS keyframe animation, what does the 0% or from keyframe represent?
- The starting point of the animation.
- The midpoint of the animation.
- The end point of the animation.
- The animation duration.
In a CSS keyframe animation, the "0%" or "from" keyframe represents the starting point of the animation. It defines the initial state of the animated element. You can set CSS properties and values for this keyframe to specify how the element should look at the beginning of the animation.
If two conflicting styles affect an element, how does the browser decide which one to apply?
- The style declared in the first stylesheet loaded takes precedence.
- The style declared in the last stylesheet loaded takes precedence.
- The style with the highest specificity is applied.
- The style with the lowest specificity is applied.
When two conflicting styles affect an element, the browser prioritizes the style declared in the last stylesheet loaded. This is known as the "cascading" nature of CSS, where later declarations override earlier ones. Specificity comes into play only if the conflicting styles are in the same stylesheet.
Which property allows you to control the size of tracks in a grid layout?
- grid-row: auto;
- grid-template-columns;
- grid-template-rows;
- grid-track: size;
The property that allows you to control the size of tracks (rows and columns) in a grid layout is 'grid-template-columns' for columns and 'grid-template-rows' for rows. These properties let you define the size of the grid tracks using various units like pixels, percentages, or 'fr' units.
What does the CSS property "font-display" control?
- How much space a font file occupies on the server
- How quickly a font is loaded and rendered on a web page
- The color and style of text
- The size of text
The "font-display" property in CSS controls how web fonts are displayed during loading. It's used to manage the flash of unstyled text (FOUT) or invisible text, making it an essential property for optimizing web font performance. Setting it to "swap" tells the browser to use a system font until the custom font is available, reducing FOUT.
How would you make an animation run indefinitely in CSS?
- Set animation-iteration to infinite.
- Set the animation-delay property to a very large value.
- Use animation-loop property and set it to true.
- Use the animation-duration property and set it to infinite.
To make an animation run indefinitely in CSS, you should use the animation-duration property and set it to infinite. This property specifies the time it takes for one cycle of the animation, and when set to infinite, it ensures that the animation continues to run indefinitely.
Which pseudo-class in CSS is used to target elements based on their position in a parent element, like the first child?
- :element-first
- :first-child
- :nth-element(1)
- :parent
The :first-child pseudo-class in CSS is used to target elements that are the first child of their parent element. It is commonly used to apply styles to the first element in a list or container. This selector is useful for creating specific styles for the first child within a parent.
How can you ensure that the animation effects persist after the animation completes its execution?
- By adding "animation-play-state: running;"
- By setting "animation-direction" to "alternate."
- By setting the "animation-fill-mode" property to "forwards."
- By using "animation-iteration-count: infinite."
To ensure that the animation effects persist after the animation completes, you should set the "animation-fill-mode" property to "forwards." This will make the animation retain its final state after completing its execution.
Which CSS property is used to create animations by gradually changing from one set of CSS styles to another?
- animate
- animate-duration
- animation-duration
- keyframes
The CSS property used to create animations by gradually changing from one set of CSS styles to another is keyframes. Keyframes are used to define a sequence of style changes over a specified duration using the @keyframes rule. The animation duration can be controlled by the animation-duration property.
You have a style rule with a class selector that is not being applied, even though another rule with three type selectors is applied to the same element. What could be the reason based on specificity?
- Class selectors have higher specificity than type selectors.
- Specificity is not a factor in CSS rule application.
- The order of the rules in the stylesheet determines the application.
- Type selectors have higher specificity than class selectors.
In CSS, class selectors have higher specificity than type selectors. Therefore, if a class selector rule is not being applied, but a rule with three type selectors is, it's likely because the class selector rule has a lower specificity.