javascript STYLE fontWeight

Sets the weight (boldness) of the element's font. CSS provides a weight rating scheme that is more granular than most browsers render on the screen, but the finely tuned weights may come into play when the content is sent to a printer. The scale is a numeric rating from 100 to 900 at 100-unit increments. Therefore, a fontWeight of 100 would be the least bold that would be displayed, while 900 would be the boldest. A setting of normal (the default weight for any font) is equivalent to a fontWeight value of 400; the standard bold setting is equivalent to 700. Other settings (bolder and lighter) let you specify a weight relative to the parent element's weight.