.row {
  text-align: center;
  width: 200px;
  margin: 0 auto;
  padding: 20px 0; }

.number {
  display: inline-block;
  position: relative;
  width: 100px; }

.number input[type="number"] {
  display: block;
  height: 32px;
  line-height: 32px;
  width: 100%;
  padding: 0;
  margin: 0;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  text-align: center;
  -moz-appearance: textfield;
  -webkit-appearance: textfield;
  appearance: textfield; }

.number input[type="number"]::-webkit-outer-spin-button,
.number input[type="number"]::-webkit-inner-spin-button {
  display: none; }

.number-minus {
  position: absolute;
  top: 1px;
  left: 1px;
  bottom: 1px;
  width: 20px;
  padding: 0;
  display: block;
  text-align: center;
  border: none;
  border-right: 1px solid #ddd;
  font-size: 1em;
  font-weight: 600; }

.number-plus {
  position: absolute;
  top: 1px;
  right: 1px;
  bottom: 1px;
  width: 20px;
  padding: 0;
  display: block;
  text-align: center;
  border: none;
  border-left: 1px solid #ddd;
  font-size: 1em;
  font-weight: 600; }