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<!DOCTYPE html>
<html>
<body>
<h1>The label form attribute</h1>
<p>The label for the first radio button is outside the form, but still a part of the form.
Try to click the "HTML" text label to select the "HTML" radio button.</p>
<form action="/action_page.php" id="form1">
  <input type="radio" id="html" name="fav_language" value="HTML"><br>
  <input type="radio" id="css" name="fav_language" value="CSS">
  <label for="css">CSS</label><br>
  <input type="radio" id="javascript" name="fav_language" value="JavaScript">
  <label for="javascript">JavaScript</label><br><br>
  <input type="submit" value="Submit">
</form>
<label form="form1" for="html">HTML</label>
</body>
</html>