A-Frame Course - Source of /examples/0500-environments-07-particles-fountain.html

<!DOCTYPE html>
<html>
  <head>
    <title>Environments - 07 - Particles Fountain</title>
    <script src="https://aframe.io/releases/1.4.1/aframe.min.js"></script>
    <script src="https://unpkg.com/aframe-environment-component@1.3.7/dist/aframe-environment-component.min.js"></script> 
    <script src="https://cdn.jsdelivr.net/gh/c-frame/aframe-particle-system-component@1.1.4/dist/aframe-particle-system-component.min.js"></script>
  </head>
  <body>
    <a-scene>
       <a-sky color="lightblue"></a-sky>
      <a-plane position="0 0 0" width="10" height="10" color="white" rotation="-90 0 0"></a-plane>

      <a-entity position="0 1.25 -15" particle-system="velocityValue: 0 12 0; velocitySpread: 0 0.1 0; texture: https://cdn.rawgit.com/IdeaSpaceVR/aframe-particle-system-component/master/dist/images/raindrop.png; color: red; opacity: 1"></a-entity>
    </a-scene>
  </body>
</html>