/* spec information about this property
name= width
css1= http://www.w3.org/TR/2008/REC-CSS1-20080411/#width
css2= http://www.w3.org/TR/2008/REC-CSS2-20080411/visudet.html#propdef-width
css21= http://www.w3.org/TR/2011/REC-CSS2-20110607/visudet.html#propdef-width
css3= http://www.w3.org/TR/2007/WD-css3-box-20070809/#width
other= http://www.w3.org/TR/2011/WD-css-device-adapt-20110915/#width
*/