<!DOCTYPE html>
<html>
<title>View transitions of different elements and shapes</title>
<link rel="help" href="https://github.com/vmpstr/view-transitions">
<link rel="author" href="mailto:[email protected]">
<style>
body {
background: lightpink;
overflow: hidden;
}
input {
position: absolute;
left: 8px;
top: 8px;
z-index: 10;
}
.top {
top: 0px;
}
.bottom {
bottom: 0px;
}
div {
position: absolute;
left: 0px;
right: 0px;
height: 40vh;
background: green;
contain: paint;
}
</style>
<input id=toggle type=button value="Toggle!"></input>
<div id=target class=top>
The green div should alternate being at the bottom and at the top.
Other than green and pink background no other colors should appear.
</div>
<script>
let classes = ["top", "bottom"]
let i = 0;
async function runAnimation() {
target.style.viewTransitionName = "target";
let t = document.startViewTransition(() => {
target.classList.remove(classes[i]);
i = (i + 1) % classes.length;
target.classList.add(classes[i]);
});
await t.finished;
}
function init() {
toggle.addEventListener("click", runAnimation);
}
onload = init;
</script>
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