Explaine HTML Iframe

An iframe (inline frame) is an HTML element that allows you to embed another HTML document within the current document. It's commonly used to embed videos, maps, or other external content into a webpage.

Basic Syntax

<iframe src="URL" width="width" height="height" title="description"></iframe>

Key Attributes

src: Specifies the URL of the document to embed
width: Sets the width in pixels or percentage
height: Sets the height in pixels or percentage
title: Provides accessibility description (required for accessibility)
frameborder: Shows/hides border (0 or 1)
allowfullscreen: Allows fullscreen mode
sandbox: Applies restrictions for security

Example 1: Basic Iframe

<!DOCTYPE html>
<html>
<head>
    <title>Iframe Example</title>
</head>
<body>
    <h1>My Webpage</h1>
    <p>Below is an embedded Google page:</p>
    
    <iframe 
        src="https://www.google.com" 
        width="600" 
        height="400" 
        title="Google Embedded Page"
        frameborder="0">
    </iframe>
</body>
</html>

Example 2: YouTube Video Embed

<iframe 
    width="560" 
    height="315" 
    src="https://www.youtube.com/watch?v=gZRdv4y2jBU" 
    title="YouTube video player" 
    frameborder="0" 
    allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" 
    allowfullscreen>
</iframe>

Example 3: Google Maps Embed

<iframe 
    src="https://www.google.com/maps/embed?pb=!1m18!1m12!1m3!1d3022.215495579041!2d-73.987844924164!3d40.74844047138915!2m3!1f0!2f0!3f0!3m2!1i1024!2i768!4f13.1!3m3!1m2!1s0x89c259a9b3117469%3A0xd134e199a405a163!2sEmpire%20State%20Building!5e0!3m2!1sen!2sus!4v1620000000000!5m2!1sen!2sus" 
    width="600" 
    height="450" 
    style="border:0;" 
    allowfullscreen="" 
    loading="lazy"
    title="Empire State Building Location">
</iframe>

Security Considerations

Only embed content from trusted sources
Use the sandbox attribute to restrict iframe capabilities when needed
Consider using X-Frame-Options if you want to prevent your own site from being embedded

Iframes are powerful but should be used judiciously as they can impact page performance and security.

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