Display modes in Drupal 8 allow you to create different ways to display content on your website without needing to create custom templates or code. Here are the steps to use display modes in Drupal 8:
1. Login to your Drupal 8 website and navigate to the content type you want to create display modes for.
2. Click on the “Manage display” tab.
3. Click on the “Custom display settings” link at the bottom of the page.
4. Check the boxes next to the display modes you want to enable for this content type (e.g. teaser, full content).
5. Scroll back up to the top of the page and you should now see additional tabs for each display mode you enabled.
6. Click on each tab and configure the settings for that display mode (e.g. which fields to show, their order, and their formatting).
7. Save your changes.
Now when you create new content of this type, you can choose which display mode to use when publishing it. This allows you to create different versions of the same content for different parts of your website or for different audiences.
