code: function generateStylesheets(done) {
  			// Convert codepoints to array of strings
  			var codepoints = [];
  			_.each(o.glyphs, function(name) {
  				codepoints.push(o.codepoints[name].toString(16));
  			});
  			o.codepoints = codepoints;
  
  			// Prepage glyph names to use as CSS classes
  			o.glyphs = _.map(o.glyphs, classnameize);
  
  			o.stylesheets.sort(function(a, b) {
  				return a === 'css' ? 1 : -1;
  			}).forEach(generateStylesheet);
  
  			done();
  		}
docs: Generate CSS
  
  @param {Function} done