#muBut {
        position: fixed;
        top: 100px;
        right: 10%;
        z-index: 999;
        animation: rotate 5s infinite linear;
        animation-play-state: paused;
        cursor: pointer;
      }

      @keyframes rotate {
        0% {
          transform: rotate(0deg);
        }
        100% {
          transform: rotate(359deg);
        }
      }