给input设置 -webkit-appearance：none样式

Chrome 下

input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
    -webkit-appearance: none !important;
    margin: 0;
}

REFERENCE

`input[type="number"] {
   -moz-appearance: textfield;
}`

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