In HTML, a container is a composite element that acts as a wrapper for grouping and organizing content on a web page. Containers are commonly used to structure the layout, style elements collectively, or apply specific behaviors to a group of elements.

Common Container Elements:

• <div>: A block-level container with no inherent meaning, primarily used for styling and layout purposes.
• <span>: An inline container for grouping text or small elements within a line.
• Semantic Containers (e.g., <header>, <section>, <article>, <footer>) add meaning and structure to the document.

Lets start design a form with container types. Create file under src named container.html.

• A generic block-level container for grouping content.
• Often styled using CSS or used as a layout grid.

Example:

.container>h1{Welcome}+p{This is a simple HTML container example.}

• A generic inline container for styling or grouping small portions of text.

Example:

p{This is a }+span[style="color: red;"]{highlighted}+{ word.}

Semantic containers give meaning to the content they hold, improving accessibility and SEO.

• <header>: For page or section headers.
• <nav>: For navigation links.
• <section>: For grouping related content.
• <article>: For self-contained content like blog posts.
• <footer>: For footer content.
• <aside>: For extra content that supports the main content.

Example:

section>h2{About Us}+p{We are a team of developers building amazing products.}

By using containers effectively, developers can create well-structured, maintainable, and visually appealing web pages.