On the browsers, you’ll find little up-down arrows in number input, called spinners. Sometimes you don’t need these. You can easily hide them just using this CSS below:

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

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