body{min-height:100dvh;display:flex;flex-direction:column}#main{padding:4rem 6rem;margin-left:auto;margin-right:auto}li.active{text-decoration:underline}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}