text: lucid.html.base.tags.mark = function(factory){
  	this.factory = factory;
  	lucid.html.tag.apply(this, arguments);
  	this.tag = 'mark';
  };
  lucid.html.base.tags.mark.prototype = Object.create(lucid.html.tag.prototype);
  lucid.html.factory.tags.mark = lucid.html.base.tags.mark;
  