code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}span.ripple{position:absolute;border-radius:50%;transform:scale(0);animation:ripple .6s ease-in-out;background-color:#fff9}@keyframes ripple{to{transform:scale(3);opacity:0}}input[type=number]::-webkit-inner-spin-button,input[type=number]::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}input[type=number]{-moz-appearance:textfield}