"Hypertext" refers to links that connect web pages to one another, either within a single website or between websites. Links are a fundamental aspect of the Web. By uploading content to the Internet and linking it to pages created by other people, you become an active participant in the World Wide Web.
HTML uses "markup" to annotate text, images, and other content for display in a Web browser. HTML markup includes special "elements" such as
<li> and many others.
An HTML element is set off from other text in a document by "tags", which consist of the element name surrounded by "
<" and "
>". The name of an element inside a tag is case insensitive. That is, it can be written in uppercase, lowercase, or a mixture. For example, the
<title> tag can be written as
<TITLE>, or in any other way.
The articles below can help you learn more about HTML.
If you're new to Web development, be sure to read our HTML Basics article to learn what HTML is and how to use it.
For articles about how to use HTML, as well as tutorials and complete examples, check out our HTML Learning Area.
In our extensive HTML reference section, you'll find the details about every element and attribute in HTML.
We have put together a course that includes all the essential information you need to work towards your goal.
Our HTML Learning Area features multiple modules that teach HTML from the ground up — no previous knowledge required.
crossoriginattribute, in combination with an appropriate CORS header, allows images defined by the
<img>element to be loaded from foreign origins and used in a
<canvas>element as if they were being loaded from the current origin.
<video>, have a
crossOriginproperty), which lets you configure the CORS requests for the element's fetched data.
preloadvalue of the
relattribute allows you to write declarative fetch requests in your HTML
<head>, specifying resources that your pages will need very soon after loading, which you therefore want to start preloading early in the lifecycle of a page load, before the browser's main rendering machinery kicks in. This ensures that they are made available earlier and are less likely to block the page's first render, leading to performance improvements. This article provides a basic guide to how
<video>elements allow you to play audio and video media natively within your content without the need for external software support.
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