html,body{margin:0;padding:0;width:100%;height:100%;overflow:hidden;background-color:#fff}main{display:flex;justify-content:center;align-items:center;width:100vw;height:100vh;overflow:hidden;position:relative}canvas{display:block;margin:0 auto;box-shadow:0 4px 20px #0000001a;width:512px!important;height:512px!important;position:absolute;left:50%;top:50%;transform:translate(-50%,-50%)}