Read the question, write HTML on the right, then Preview or Check.
QuestionHint and solution stay closed until you open them
Embed iframe src="https://example.com" title="Example".
Examples
Expected
iframe
Hint
- Always set title for accessibility.
Show correct code
Peek only after you have tried. You can still Check your own version.
<iframe src="https://example.com" title="Example"></iframe>
index.htmlLive preview · Check reads the DOM
ResultIdle
Run to see output. Check grades the tests.