liveBook · Manning

Iframe

As explained in Build Your Own Robot: Using Python, CRICKIT, and Raspberry Pi

An iframe is an HTML element that embeds another document or web resource within a page.

An iframe embeds another document or web resource inside a page. In a robot control interface, it can isolate snack-selection requests from a live video stream so submitting a choice does not refresh the page or interrupt playback. section 11.4.3 section 11.5

Use an iframe when separate page content must operate inside a larger application:

  • Place the live stream in an img element and load the interactive snack list at /items inside an iframe. section 11.4.3
  • Keep selection requests inside the iframe so the surrounding page and its video playback remain active. section 11.4.3
  • Style the iframe with full width, a 300-pixel height, and no border to fit the application layout. section 11.4.2
<body>
<h1><a href='/'>Snack Pusher</a></h1>
<img src="http://{{request.host_name}}:9000/" alt="camera"><br>
<iframe src="/items"></iframe> 
</body>
</html>

A compact HTML template places the camera stream above an iframe whose src points to the snack-selection page. section 11.4.3

iframe {
  width:100%;
  height:300px;
  border:none;
}

This CSS rule makes the embedded page span the available width, gives it a fixed height, and removes its border. section 11.4.2

How Build Your Own Robot: Using Python, CRICKIT, and Raspberry Pi covers it

How deep it goes
Explains embedding, page-refresh isolation, HTML placement, and basic CSS styling without descending into iframe internals.
Examples
Demonstrates a snack-pushing robot page with a camera stream, an /items iframe, snack buttons, and mobile-oriented styling.
What you can do after
Build it from scratch by embedding a web page beside a live stream and styling the iframe for uninterrupted interaction.
How it connects
Connects HTML elements, web applications, live video streams, CSS styling, and robot-control interfaces.

Related concepts

This explainer was generated by Manning's knowledge graph from the text of Build Your Own Robot: Using Python, CRICKIT, and Raspberry Pi. The section links point to the parts of the book it draws on.