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<!DOCTYPE html> <title>Basic Visual Test</title>
<style>
@import '/reset.css';
#reference {
width: 200px;
height: 200px;
background-color: red;
box-shadow: inset 0 0 0 1px black;
}
#popper {
width: 100px;
height: 100px;
background-color: rebeccapurple;
box-shadow: inset 0 0 0 1px black;
}
#containing-block {
background: gray;
width: 400px;
height: 400px;
overflow: auto;
will-change: transform;
}
#containing-block::before {
content: '';
display: block;
height: 200px;
width: 1px;
}
#containing-block::after {
content: '';
display: block;
height: 200px;
width: 1px;
}
</style>
<div id="containing-block">
<div id="reference">Reference Box</div>
<div id="popper">Popper Box</div>
</div>
<script type="module">
import { createPopper } from './dist/popper.js';
const reference = document.querySelector('#reference');
const popper = document.querySelector('#popper');
window.instance = createPopper(reference, popper, {
strategy: 'fixed',
});
</script>
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