input type number remove arrow (spinner) using css

 input[type=number]{ -moz-appearance: textfield; }
  input[type=number]::-webkit-inner-spin-button,
input[type=number]::-webkit-outer-spin-button {
-webkit-appearance: none;
margin: 0;
}

You are able to specify for particular field using class

Format
input[type=number].classname{}