The size of most display elements can be specified by setting the html.width/html.height properties, which translate to the css width/height attributes of the display's corresponding tag (thus they can be specified with a unit, e.g. 30px, 30em, etc.)
Input fields also support an html.size which corresponds to the html input tag's size attribute.
In both cases, you should specify the properties shared value.
For best results, use the Firefox browser..