'h3' => [$this->t('Heading'), '<h3>' . $this->t('Subtitle three') . '</h3>'],
'h4' => [$this->t('Heading'), '<h4>' . $this->t('Subtitle four') . '</h4>'],
'h5' => [$this->t('Heading'), '<h5>' . $this->t('Subtitle five') . '</h5>'],
- 'h6' => [$this->t('Heading'), '<h6>' . $this->t('Subtitle six') . '</h6>']
+ 'h6' => [$this->t('Heading'), '<h6>' . $this->t('Subtitle six') . '</h6>'],
];
$header = [$this->t('Tag Description'), $this->t('You Type'), $this->t('You Get')];
preg_match_all('/<([a-z0-9]+)[^a-z0-9]/i', $allowed_html, $out);