Enter the embed URL, width, height, and sandbox options, and the tool assembles a complete iframe tag.
sandbox restricts iframe capabilities for security. It can block scripts, forms, popups, etc. Use sandbox='allow-scripts allow-same-origin' for trusted content.
Wrap the iframe in a div with padding-bottom percentage (e.g., 56.25% for 16:9). Use position:absolute on iframe and position:relative on wrapper.
Use iframes for embedding external content like YouTube videos, maps, or third-party widgets. Avoid for same-site content—use AJAX or includes instead.