public static HtmlBuilder OpenElement(XmlWriter writer, string elementName, string attributeName1, string attributeValue1, string attributeName2, string attributeValue2)
        {
            var builder = new HtmlBuilder(writer);

            return(builder.OpenElement(elementName, attributeName1, attributeValue1, attributeName2, attributeValue2));
        }
        public static HtmlBuilder OpenElement(XmlWriter writer, string elementName)
        {
            var builder = new HtmlBuilder(writer);

            return(builder.OpenElement(elementName));
        }