*{box-sizing:border-box}html,body{margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased}input,button,textarea,select{font-family:inherit}button{cursor:pointer}a{color:inherit}.cko-center{min-height:100vh;display:grid;place-items:center;padding:24px;text-align:center;color:#333}.cko-spinner{width:34px;height:34px;border:3px solid rgba(0,0,0,.15);border-top-color:#0000008c;border-radius:50%;animation:cko-spin .8s linear infinite}@keyframes cko-spin{to{transform:rotate(360deg)}}