body {-webkit-font-smoothing: antialiased;-moz-osx-font-smoothing: grayscale;}
:focus {outline: none;}
/* Chrome, Safari, Edge, Opera */
#card_number::-webkit-outer-spin-button,
#card_number::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

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