a pixi.js boilerplate scene in a single 16 line self-contained html file

pixi.html

<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/reset-css@5.0.1/reset.min.css">
<script type="module">
import * as PIXI from "https://cdnjs.cloudflare.com/ajax/libs/pixi.js/6.2.0/browser/pixi.min.mjs"
let app = new PIXI.Application()
document.body.appendChild(app.view)

window.onresize = function() {
    app.renderer.resize(window.innerWidth, window.innerHeight)
    app.stage.position = { x:window.innerWidth/2, y:window.innerHeight/2 }
}
window.onresize()

const dog = PIXI.Sprite.from('https://placedog.net/500?random')
dog.anchor.set(.5)
app.stage.addChild(dog) 
</script>