py/test/pytests/light_sensor_static/light_sensor.html

<test-template>
  <div id="container">
    <div id="prompt">
      <i18n-label>Use indicated light source to pass each subtest.</i18n-label>
      <i18n-label id="space-prompt">Hit "space" to begin...</i18n-label>
    </div>
    <div id="tasks"></div>
    <div id="input"></div>
  </div>
</test-template>