body{height:100vh;margin:0;background-color:orange}canvas{display:block;height:100%;width:100%}button{background-color:red;color:#000;font-weight:700;border:none;padding:10px 20px;border-radius:100%;background-color:#29cda4;cursor:pointer}#button-container{position:fixed;top:0;height:50vh;display:flex;flex-direction:column;align-items:center;justify-content:space-evenly}#reverse{background-color:#29cda4;border-radius:100%;color:#000;font-weight:700;border:none;padding:10px 20px;cursor:pointer}