Hi Wizards, New to CSS. I'm fiddling around with a sheet and what I'd like to do is set an input field (type="number") to a default value. That's easy enough to do, but I want that default value to change depending on if a checkbox is checked or not. Also, I still want the user to be able to modify the value for other adjustments that may happen in their game, so I don't think it can be set disabled="true". This is basically an error range on a skill and that error range changes if the character is trained (has ranks) in the skill or not. Possible?