css/selectors/focus-within-006-ref.html

<!DOCTYPE html>
<html lang=en class="reftest-wait">
<meta charset="utf-8">
<title>Selectors Level 4: focus-within Reference File</title>
<link rel="author" title="Manuel Rego Casasnovas" href="mailto:rego@igalia.com">
<style>
:focus {
  outline: none;

  /* Make the caret invisible
     since it matches the color of the text, which is transparent,
     while keeping the text readable thanks to its shadow.
     Not using the caret-color property as it is too new to be relied on. */
  color: transparent; text-shadow: black 0px 0px 0px;
}

div {
  border: solid 15px green;
}
</style>
<p>Test passes if, when the element below is focused,
it is surrounded by a thick green border.
There must be no red or blue once it is focused.</p>
<div>
  <input id="focusme" value="Focus this element">
</div>
<script>
var focusme = document.getElementById('focusme');
focusme.focus();
document.documentElement.classList.remove('reftest-wait');
</script>
</html>