How can less than a full screen appear?

[Chrisj]

When this code, on an html page, is viewed, via mobile device, you can tap the screen and the mobile device recording full screen successfully appears:

 

<form>
----
<input type="file" name="Upload" id="fileToUpload" accept="video/*" capture="user" onchange="submitForm();">
	<input type="submit" value="Upload" name="submit" id="go" style="display: none;"/>
  ----
  </form>

 

how/what can I add so that the less than the full screen appears?

[requinix]

You cannot control how the browser gets the video from a capturing <input>.

If you need more control of that process then you'll have to get the video another way.