/* Chrome, Safari, Edge, Opera */
input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

/* Firefox */
input[type=number] {
  -moz-appearance: textfield;
}

body {
     display: flex;
     min-height: 100vh;
     flex-direction: column;
 }
 main {
     flex: 1 0 auto;
 }