Cards are static widget useful to display a special content with a call to action, to create a nice appealing navigation elementor for your site, to promote a new show or anything similar.
To add a new card:
Step 1: Edit the page with Elementor
Step 2: look for Card in the widgets and drag it in the page
Step 3: Add a title and a subtitle
Step 4: optionally set a button with a link
Step 4 set a background and a subject image
Horizontal cards
The horizontal cards work just in the same way, but the image and the texts are inline and not in column.