HTML Attributes Tutorial – A Complete Beginner Guide HTML attributes provide extra information about HTML tags. They help control how elements behave, look, and function on a webpage. In this guide, you'll learn what HTML attributes are, how they work, the most common attributes, and examples with clean code. Table of Contents What Are HTML Attributes? How Attributes Work HTML Global Attributes Most Common Attributes Form-Related Attributes Boolean Attributes Practical Examples Best Practices What Are HTML Attributes? HTML attributes are special values added inside HTML opening tags to provide additional information about the element. They control behavior, appearance, accessibility, and more. Example: <img src="photo.jpg" alt="Beautiful image"> Here: src = image source alt = alternative text How Attributes Work Attributes always appear inside the opening tag: <tagname attribute="value...