Javascript Partículas Js não funcionando

<div id="particles-js"></div>
<script src="https://cdn.jsdelivr.net/particles.js/2.0.0/particles.min.js"></script>
<script>
    particlesJS.load('particles-js', 'particles.json',
    function(){
        console.log('particles.json loaded...')
    })
</script>
Outstanding Opossum