This worked in Drupal 7 but isn't in Drupal 8.

$form['covid-19'] = array(
    '#markup' => '<div style="border: 2px solid red;padding:10px;margin-bottom:10px;"><strong>Due to the COVID-19 situation, we will only be purchasing e-books and e-audiobooks at this time.</strong> You are welcome to enter your information for print books, DVDs, or CDs, and they will be purchased when the libraries re-open.  Inter-library Loans [loans from outside Yavapai County] are suspended for now.</div>',

I want the div with style info to stay intact so I can just comment it out when the crisis is over. Then I want to leave it there as a placeholder ready for the next crisis.

In this example, the strong tag makes it through but the div does not.

I also tried setting the div info as a #prefix and #suffix but that didn't work either.

Is there a way to do this?

Thank you!

  • 1
    See Pass raw html to #markup for numerous workarounds to the (intentional) filtering of markup on rendering. Personally, I think it would probably be easier to just add a .crisis class to your site css... Mar 26, 2020 at 23:49
  • Thanks for that link. Here's what worked for me: use Drupal\Core\Render\Markup; [..] return [ '#markup' => Markup::create($html), ];
    – Chanel
    Mar 27, 2020 at 16:20

1 Answer 1


Markup strips away some tags and attributes. Here is a way to do it.

Add a class to your form

$form['#attributes']['class'][] = 'crisis';

Add css rule to your theme's css

.crisis {
    display: none;

if you do not have a library and a .css file to use, you need to create them. Define a library in your theme or module in your THEMEorMODULE.libraries.yml

  version: 1.x
      css/crisis.css: {}

create css/crisis.css file and put your css rule(s) in it

and attach the library to your form

$form['#attached']['library'][] = 'THEMEorMODULE/crisis'

and clear cache

NOTE: The above (pseudo)code is not tested. For more information please have a look here

  • 1
    This is valuable information and I'm sure I'm going to use it soon. But for this situation I really wanted to keep everything in one place.
    – Chanel
    Mar 27, 2020 at 16:22

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