How push-notification advertising looks in
different browsers

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RU
OS/Browser: Windows 7, 8, 10 Pro / Chrome
Logo: 192 x 192
Banner: 492 x 328
Title: 30 symbols
Description: 45 symbols

Default push-notification on Windows 7, 8, 10 Pro, sent through Chrome looks like this. Big banner (Rich push) has default size, but description text may be partially hidden.
OS/Browser: Windows 10 Home /
Chrome
Logo: 192 x 192
Banner: 492 x 245
Title: 30 symbols
Description: 45 symbols

That's how same push-notification looks on Windows 10 Home coming from Chrome. Big banner goes to the top and is being cut significantly. Text stays the same though, but dots appear for some reason.
OS/Browser: Windows 7, 8, 10 Home, 10 Pro / Opera
Logo: 192 x 192
Title: 30 symbols
Description: up to 27 symbols

Opera doesn't send big banner and shows itself like push-notification source. Part of the description may also get cut.
OS/Browser: Windows 7, 8, 10 Home,
10 Pro / Firefox

Logo: 192 x 192
Title: 30 symbols
Description: up to 27 symbols

Firefox doesn't send big banner also and places title above the icon. Weird. User will probably see the description but can miss the title.
OS/Browser: Android / Chrome
Logo: 192 x 192
Banner: 492 x 225
Title: 30 symbols
Description: 45 symbols

Chrome on Android shows almost perfect push-notification without any changes. Big banner cuts a bit depending on screen size.
OS/Browser: Android / Firefox
Logo: 192 x 192
Title: 30 symbols
Description: 45 symbols

Firefox doesn't show Rich Push banner at all. At least it doesn't cut the text.
Opera for MacOS doesn't send big banner, but shows its own icon and moves the logo to the right.
OS/Browser: MacOS / Opera
Logo: 192 x 192
Title: 30 symbols
Description: 45 symbols

Firefox for MacOS looks the same, no big banner, Firefox icon.
OS/Browser: MacOS / Firefox
Logo: 192 x 192
Title: 30 symbols
Description: 45 symbols

Push-notifications in Chrome on MacOS has "Close" and "Settings" buttons. That may result into description cut. Full text will become available only after clicking on push.
OS/Browser: MacOS / Chrome
Logo: 192 x 192
Title: 30 symbols
Description: 45 symbols