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transition in Superhuman

Partial transition is partly supported in Superhuman.

Blink runs transitions, but the user's reduced-motion setting may disable them.

Works in 4 of 21 · partial in 7 · not supported in 10

Which clients
Works
Apple Mail, Apple Mail iOS, Thunderbird, Fastmail
Partial
Yahoo Mail, Yahoo Mail Android, Yahoo Mail iOS, Samsung Mail, HEY Mail, AOL Mail, Superhuman
Not supported
Gmail, Gmail Android, Gmail iOS, Outlook 365, Outlook (New), Outlook Classic, Outlook iOS, Outlook Android, Outlook for Mac, Proton Mail

What to do instead in Superhuman

Transitions don't work in email; style the default state well

instead 
.button {
  /* Use the most visually appealing state as default.
     :hover is only supported in a few clients. */
  background-color: #6d28d9;
  color: #ffffff;
  text-decoration: none;
  font-weight: bold;
}
Show the original
before 
.button {
  background-color: #6d28d9;
  transition: background-color 0.2s;
}
.button:hover {
  background-color: #5b21b6;
}

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What Superhuman does with transition

caniemail record, tested upstream 29 Mar 2024

  • Partial. Blink runs transitions, but the user's reduced-motion setting may disable them.

Your next question

Every feature in Superhuman · transition in every client

Questions

How many email clients support transition?
It works in 4 of 21, partial in 7, not supported in 10.
What do I use instead of transition in Superhuman?
Transitions don't work in email; style the default state well.

To see what else in your email Superhuman does not support, paste the whole email.

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caniemail (MIT) via @emailens/engine 0.18.22 · tested upstream 29 Mar 2024 · data last changed 10 Nov 2026 · Outlook (New) cells are the engine's mapping