Using this tag, you can put a jQueryUI-powered slider next to a field.
This property will only work when used with a regular field; i.e. you should use it with a type: text or a type: hidden field.
You may need to add/tweak the CSS on both the field and the slider such that they appear correctly. For example, you may want to change the width of both the field and the slider. You can do this separately; they both have separate style properties that you can set.
slider: