Program & Coding/Visual design
Visual design. Animate Multiple Elements at Variable Rates
포니라이더
2021. 11. 18. 00:58
Animate Multiple Elements at Variable Rates
In the previous challenge, you changed the animation rates for two similarly animated elements by altering their @keyframes rules. You can achieve the same goal by manipulating the animation-duration of multiple elements.
In the animation running in the code editor, there are three stars in the sky that twinkle at the same rate on a continuous loop. To make them twinkle at different rates, you can set the animation-duration property to different values for each element.
Set the animation-duration of the elements with the classes star-1, star-2, and star-3 to 1s, 0.9s, and 1.1s, respectively.
<style>
.stars {
background-color: white;
height: 30px;
width: 30px;
border-radius: 50%;
animation-iteration-count: infinite;
}
.star-1 {
margin-top: 15%;
margin-left: 60%;
animation-duration: 1s;
animation-name: twinkle;
}
.star-2 {
margin-top: 25%;
margin-left: 25%;
animation-duration: 0.9s;
animation-name: twinkle;
}
.star-3 {
margin-top: 10%;
margin-left: 50%;
animation-duration: 1.1s;
animation-name: twinkle;
}
@keyframes twinkle {
20% {
transform: scale(0.5);
opacity: 0.5;
}
}
#back {
position: fixed;
padding: 0;
margin: 0;
top: 0;
left: 0;
width: 100%;
height: 100%;
background: linear-gradient(black, #000099, #66c2ff, #ffcccc, #ffeee6);
}
</style>
<div id="back"></div>
<div class="star-1 stars"></div>
<div class="star-2 stars"></div>
<div class="star-3 stars"></div>