:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif}body{margin:0;overflow:hidden}canvas{display:block}.info-box{position:absolute;top:10px;left:10px;padding:10px;background:#0009;color:#fff;border-radius:4px;font-size:14px}.info-box a.info-link{color:#ff0;text-decoration:none}.info-box a.info-link:hover{text-decoration:underline}.btn{background-color:#ffeb3b;border:none;border-radius:4px;margin:4px 0;padding:4px 10px}