Hypertext Markup Language (HTML) is the standard and most common markup language for developing web pages and web applications. An HTML file is simply a plaintext file with the .html file extension. In an HTML document, texts are surrounded and delimited by tags, written in angle brackets: <p>, <img>, <i>, and so on. These tags typically consist of pairs—an opening tag and a closing tag—indicating the styling or the
nature of the data included inside.
It is also possible to include other forms of media in HTML code, such as images or videos. There are also numerous other tags that are used in common HTML documents. Some specify a group of elements that share some common characteristics, such as <id></id> and <class></class>.
The following is an example of HTML code:
Sample HTML code
Fortunately, detailed knowledge on what each HTML tag accomplishes is not required for us to be able to make effective web requests. As we will see later on in this chapter, the more essential part of making web requests is the ability to interact with web pages efficiently.