A description is full width by default, and will add a slight bit of empty space between his checkbox and the line below. What he should really do is give the checkbox element a width of full.
http://www.wowace.com/addons/ace3/pa...mon-parameters
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"You'd be surprised how many people violate this simple principle every day of their lives and try to fit square pegs into round holes, ignoring the clear reality that Things Are As They Are." -Benjamin Hoff,
The Tao of Pooh