eventsource/html-event-source/event-source-parsing-1.html

<!DOCTYPE HTML>
<style>
  body {
    color: green;
  }

  event-source {
    color: red;
  }
</style>

<event-source src="404">

This text must be <em>green</em>.
1	<!DOCTYPE HTML>
2	<style>
3	body {
4	color: green;
5	}
6
7	event-source {
8	color: red;
9	}
10	</style>
11
12	<event-source src="404">
13
14	This text must be <em>green</em>.