以下是单击“ HERE”时可更改div高度的代码段。
我希望单击以更改动画进度的百分比(例如,更改为50%)。如何实现?
function f() {
document.getElementById('id1').style.height = "10px";
}
@keyframes k {
0% {
background-color: red;
}
100% {
background-color: blue;
}
}
.a {
height: 100px;
width: 100px;
animation: k 10s infinite;
}
<div id="id1" class="a"></div>
<div onclick="f()">HERE</div>
答案 0 :(得分:1)
您可以使用WAAPI(如果需要,可以使用其polyfill):
const hop = (t) => a.currentTime = options.duration * t,
keyframes = [
{transform: 'translateX(-100px)', background: 'red'},
{transform: 'translateX(100vw)', background: 'blue'}
],
options = {
duration: 4000,
iterations: Infinity
},
a = document.getElementById('id1').animate(keyframes, options)
#id1 {height: 100px; width: 100px;}
<!-- polyfill -->
<script src="https://rawgit.com/web-animations/web-animations-js/master/web-animations.min.js"></script>
<div id="id1"></div>
<!-- 0.5 is for 50% here -->
<button onclick="hop(0.5)">HERE</button>