Early HTML
In its original conception, HTML was supposed to include elements that could be used to mark information within the HTML document according to meaning. Tags such as <title>, <h1>, <h2>, and so on were created to represent the content of the HTML document.
How the marked text would actually be interpreted and displayed would depend on the Web browser's settings. Theoretically, any two browsers with the same user settings would present the same HTML document in the same way. This flexibility would enable users with special needs or specific preferences to customize their Web browsers to view HTML pages in their preferred format-an especially useful feature for people with impaired vision or who are using older Web browsers.
In this scenario, the HTML developer uses tags based on an HTML standard that are displayed according to the user's preferences. For this to work, it must be based on a standard for HTML. The current Web standard can be found at http://www.w3.org.