A-Frame Course - Source of /examples/1200-animations-04-rotationaxis.html

<!DOCTYPE html>
<html>
  <head>
    <title>Animations - 04 - Rotation axis</title>
    <script src="https://aframe.io/releases/1.5.0/aframe.min.js"></script>
  </head>
  <body>
    <a-scene background="color:lightblue">
      <a-entity
        id="rotatingbox"
        position="0 2 -2"
        animation="property: rotation; from: 0 0 0; to: 0 0 360; dur: 1000; loop: true; easing: linear"
      >
        <a-box
          position="0 0.25 0"
          width="0.1"
          height="0.5"
          depth="0.1"
          color="#ff0000"
        >
        </a-box>
      </a-entity>

      <a-entity
        id="rotatingsphere"
        position="0 0 0"
        animation="property: rotation; from: 0 0 0; to: 0 360 0; dur: 5000; loop: true; easing: linear"
      >
        <a-sphere position="0 0 -5" radius="0.1" color="#00ff00"> </a-sphere>
      </a-entity>
    </a-scene>
  </body>
</html>