The beauty of a tag helper is it's ability to add new HTML to your page. Once you know what you want to change, here are the tools to change the HTML going to the user.

Custom elements in document heads can disrupt Google's rendering, potentially harming SEO; JSON-LD offers a flexible alternative. Using custom HTML tags in a web page's head can disrupt Google's ...

My custom HtmlHelper wrote out a bunch of HTML elements (a fieldset, a label, a textbox and a div element to hold validation messages). I could create a custom tag helper that would do the same.

In this article, we'll examine the XPath custom tag library for JSPs and see a tag collection that provides simple control constructs and a uniform attribute value substitution facility, all of ...