The animation CSS property specifies the name of an animation you will supply, pulse in this case, and its overall duration of 1 second. This simple example will illustrate several other features below: The animation continuously shrinks and grows one of the icons as it dims and brightens it. To understand how animations work, start with an example of a pulsing icon, which may be used in a mobile interface to indicate what part of an application is selected. To modify rules dynamically, inject CSS into a local style region, or use the CSSKeyframeRule interface. Animations that run concurrently cannot manipulate any of the same properties. Use comma-separated property values to specify more than one animation. Specify both the rule and From JavaScript, specify standard properties such as animationName along with WebkitAnimationName. Use standard property names along with -webkit- prefixes. If two time measurements are included, they are interpreted first as duration then as delay. The animation shorthand property can represent values from all other animation properties. It uses the same set of keywords as transitions: ease, ease-in, ease-out, ease-in-out, linear, or custom cubic-bezier() functions. The animation-timing-function property controls the speed of progression between each keyframe, and can be altered within an animation. Set animation-play-state to pause or running to stop and start animations. The animation-fill-mode property preserves an animation’s start state before a delayed animation executes ( backwards)), its end state after its final iteration ( forwards), or both. The animation-direction property allows you to play the animation in normal’orreverse** order, or alternate between the two for even/odd iterations. The animation-iteration-count property sets the number of times the animation plays, either as an integer or infinite. Use animation-delay to pause before executing an animation, using the same time values as for duration. Within the block, keyframes such as 0%, 50%, and 100% behave as selectors that manipulate CSS properties over the duration of the animation.Īny CSS property that be transitioned can also be animated. The rule declares the full sequence that corresponds to the animation-name. Use the required animation-duration property to set the overall amount of time over which the animation executes, either in seconds or milliseconds ( 1s = 1000ms). Loading the CSS or applying a new name causes the animation to execute. The required animation-name property specifies the name of a keyframe animation, and must correspond to a rule. Since they work similarly, the term CSS animations often serves as a shorthand to refer to transitions as well, but this tutorial only discusses keyframe animations. To get the most from this tutorial, you should already be familiar with CSS transitions. Keyframe animations can execute freely, and offer the best way to build complex effects into an interface. Unlike transitions, they are not tied to shifts between style sheets that distinguish interface states. Like transitions, they manipulate the CSS properties that control how interface elements appear. CSS animations allow you to build complex animated sequences.
0 Comments
Leave a Reply. |