You can include newlines and line breaks inside the body of web notifications.
Notification appearance
Web push notifications have many options to control the visual appearance and behavior.
Styling web push notifications
Is it possible to customize the style of web push notifications?
Web Notifications: difference between icon / image / badge
What is the difference between Notification.icon, Notification.image and Notification.badge?
Change the default Chrome icon (browser logo) for notifications
Is it possible to replace the Chrome logo / browser logo on notifications with the website logo?
How to show web push notifications for longer
How to prevent the browser notifications from automatically closing? Is there any way to increase the amount of time the notifications are displayed in foreground to the user?
Sound on web push notifications
There are different ways to control the beep / sound made by web push notifications.
Pushpad: the new feature for sending silent notifications
Now Pushpad supports the silent option for web push notifications. This means that you can send web push notifications that don’t produce any sound or vibration when they are received.
What is the character limit for web push notifications?
Are you wondering what is the maximum length of text that you can include in your web notifications?
Can I use SVG images inside Web Push Notifications?
A customer has recently asked if they could use SVG images as the notification icon. Unfortunately the answer is no at the moment because of browser support.
Pushpad New Feature: add emoji to web push notifications
Pushpad fully supports Unicode characters and emoji.