form.custom_quant {
  width: 300px;
  margin: 0 auto;
  text-align: center;
  padding-top: 50px;
}

.value-button {
  display: inline-block;
  border: 1px solid #ddd;
  margin: 0px;
  width: 40px;
  height: 20px;
  text-align: center;
  vertical-align: middle;
  padding: 11px 0;
  background: #eee;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  -khtml-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

  .value-button-invalid {
    visibility: hidden !important;
  }

.value-button:hover {
  cursor: pointer;
}

form .decrease-button {
  margin-right: -4px;
  border-radius: 8px 0 0 8px;
}

form .increase-button {
  margin-left: -4px;
  border-radius: 0 8px 8px 0;
}

form .input-wrap {
  margin: 0px;
  padding: 0px;
}

input.number {
  text-align: center;
  border: none;
  border-top: 1px solid #ddd;
  border-bottom: 1px solid #ddd;
  margin: 0px;
  width: 40px;
  height: 40px;

    -webkit-user-select: none; /* For Safari and Chrome */
  -moz-user-select: none;    /* For Firefox */
  -ms-user-select: none;     /* For Internet Explorer/Edge */
  user-select: none;         /* Standard property */
}

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