Page Rotation Animation, just copy and past on your browser console

page_rotation.js

const styleElement = document.createElement('style');

styleElement.textContent = `
  body > * {
    transform-style: preserve-3d;
    animation: rotate 5s linear infinite;
  }

  @keyframes rotate {
    100% {
      transform: rotateY(1turn);
    }
  }
`;

document.head.appendChild(styleElement);