The Body field of the content on our website is generally quite large -- multiple pages. When Editing in Drupal 8, the Input Area is quite small -- 98 characters wide by 9 lines. The first thing we do is drag the bottom right of the Input Area and increase the size to 30-40 lines. This makes editing much easier.

Is there a way to make the Body Input Area size 30 lines long for our website? This would eliminate one step on every Edit!

2 Answers 2


You can go to the content types (or paragraph type) Form display settings and set the number of rows. No dev needed:

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e.g. /admin/structure/types/manage/content_type/form-display

  1. Click on the gear in the right column
  2. Click update
  3. Click save at the bottom
  • Perfect. Thank you!!
    – Greg Sims
    Dec 16, 2020 at 15:04

This can be done by setting #rows for the textfield widget in hook_form_alter().

This should work regardless of whether you are using CKEditor or a regular textarea form element.

For example (using hook_form_FORM_ID_alter() which requires you to target the node edit form with FORM_ID),

 * Implements hook_form_FORM_ID_alter().
function mymodule_hook_form_FORM_ID_alter(&$form, FormStateInterface $form_state, $form_id) {
  $form['body']['widget'][0]['value']['#rows'] = 30;

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