By Alligator and Matt Abrams
Introduction
The <!DOCTYPE html> tag is a required preamble for HTML documents. Here’s how you use it.
Prerequisites
- A general knowledge of HTML5. For a comprehensive review of the HTML5 markup language, explore our series, How To Build a Website in HTML.
Setting doctype in HTML5
doctype in HTML5To set the doctype in HTML5, add this to the top of your html code:
<!DOCTYPE html>
Setting the doctype remains important for the support of legacy browsers.
Conclusion
Setting the doctype on your code is important, but it’s only the first step. For a more comprehensive review of the HTML5 markup language, explore our series, How To Build a Website in HTML.
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About the author(s)
Alligator.io is a developer-focused resource that offers tutorials and insights on a wide range of modern front-end technologies, including Angular 2+, Vue.js, React, TypeScript, Ionic, and JavaScript.
Supporting the open-source community one tutorial at a time. Former Technical Editor at DigitalOcean. Expertise in topics including Ubuntu 22.04, Ubuntu 20.04, CentOS, and more.
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