saveRule = function (r) {
								var selRange = self.extractSelector(content, r.start);
								var rule = range.create2(selRange.start, r.end);
								rule._selectorEnd = selRange.end;
								rule._contentStart = r.start;
								ranges.push(rule);
							}
Matches curly braces content right after given position
@param  {String} content CSS content. Must not contain comments!
@param  {Number} pos     Search start position
@return {Range}