Spinner Inline Show Control

[admin]

If you just want to make the input box smaller:

Code:

.item-control-single .control-spinner .spinner-value {
  width: 50px;
}

Or you can scale the whole control to 75% like this:

Code:

.item-control-single .control-spinner {
  transform: scale(0.75);
  transform-origin: 0 0;
}