Feeling a little lost here... I've heard that some browsers don't fully support CSS animations. So, when it comes to animation, should I go with CSS or JavaScript?
I'd love to hear your thoughts on the pros and cons of each option.
Feeling a little lost here... I've heard that some browsers don't fully support CSS animations. So, when it comes to animation, should I go with CSS or JavaScript?
I'd love to hear your thoughts on the pros and cons of each option.
When it comes to CSS3 based animations, we can categorize them into two main types: KeyFrame-Based and Transition-Based. These animations rely on the browser's implementation for animating elements, while JS-based animations handle the animation themselves. One advantage of CSS animations is their performance, as they utilize the browser's routines and can even work in a "NoScript-Environment."
CSS Transition
A CSS Transition occurs when you change certain CSS properties. For example, hovering over a rectangle can trigger an animation that smoothly transitions its size using the transition property in CSS.
#rectangle{
width: 40px;
border: 1px solid black;
transition: width 1s linear; // The transition property sets how the transition-animation behaves
}
#rectangle:hover{
width: 80px;
}<div id="rectangle">test</div>Learn more about CSS transitions
CSS KeyFrames
Unlike transitions which are used for smooth element changes, KeyFrame-Based CSS animations allow for scripted animations such as character movements. This method requires specifying animations using @keyframes and setting animation settings with the <animation> property and its sub-properties. KeyFrame animations don't trigger automatically when a value changes but give you control over when and how to display and loop through them.
/* example from http://www.w3schools.com/css/css3_animations.asp */
@keyframes example {
0% {background-color: red; left:0px; top:0px;}
25% {background-color: yellow; left:200px; top:0px;}
50% {background-color: blue; left:200px; top:200px;}
75% {background-color: green; left:0px; top:200px;}
100% {background-color: red; left:0px; top:0px;}
}
#rectangle{
width: 100px;
height: 100px;
position: relative;
background-color: red;
animation-name: example;
animation-duration: 4s;
}<div id="rectangle">test</div>JS Animations
JS Animations differ from CSS animations as they have their own implementation for displaying animations. While the performance of JS animations may be inferior to CSS animations, one advantage is the ability to create custom animations using scripting. It's recommended to explore libraries or existing resources for efficient JS-based animations, as creating your own may result in slow performance. Several libraries offer various animation techniques:
In conclusion, CSS animations are reliable for most cases, reserving the use of JS animations for scenarios where advanced scripting capabilities are required for specific animations.
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