This topic covers the fundamental components of HTML, including tags, elements, attributes, and the overall structure of an HTML document.
- Tags: HTML tags are the building blocks of an HTML document. They define the purpose and structure of different elements within the document. Tags are enclosed within angle brackets (< >) and come in pairs: an opening tag and a closing tag. The opening tag denotes the start of an element, and the closing tag signifies its end. For example, the opening tag <h1> denotes a heading element, and the closing tag </h1> marks the end of the heading.
- Elements: An HTML element is a complete unit composed of an opening tag, content, and a closing tag. The content represents the text, images, or other elements contained within the element. For instance, the <p> element defines a paragraph, and the text placed between the opening and closing <p> tags represents the content of that paragraph.
- Attributes: HTML attributes provide additional information about an element. They are added within the opening tag of an element and are specified as key-value pairs. Attributes modify the behavior or appearance of elements and are used to provide instructions or add functionality to elements. For example, the <img> element uses the src attribute to specify the source (URL) of an image.
- Structure of an HTML Document: An HTML document follows a specific structure to ensure proper rendering and interpretation by web browsers. The basic structure includes:
- <!DOCTYPE> declaration: This specifies the HTML version being used.
- <html> element: The root element that encapsulates the entire HTML document.
- <head> element: Contains meta information, title, and references to external resources like CSS and JavaScript.
- <body> element: The main content area of the web page, where visible content is placed.
Within the <body> element, various HTML elements are used to structure and organize content, such as headings (<h1>, <h2>, etc.), paragraphs (<p>), lists (<ul>, <ol>, <li>), images (<img>), links (<a>), and more. By combining these components, web developers can create well-formed and meaningful HTML documents. Understanding the proper usage of tags, elements, attributes, and the overall structure of an HTML document is essential for building well-organized and accessible web pages.
