What is Fade In?
An element appears by going from fully transparent to fully visible. It is the simplest entrance animation and rarely feels wrong.
opacity 0 → 1 · 150 ms · no move
A fade in changes an element's...
Write it in your own words in the app.
In real work
Add a fade in on the toast notification over 150ms. Opacity from 0 to 1. No movement.
In the illustration
The filter wheel turns from solid to clear over 150 ms and the toast card appears in place; its position marker never moves.
Add a fade in to the search results in your animation library: opacity 0 to 1 over 200 ms, ease-out, starting after the data arrives and not before.
Try it now
The fastest way to learn a word is to use it. Open this line in the agent you already work in and watch what it does. Change the tool to the one you use.
Go further
01Practice
Make it stick
One term a day, a short quiz, and sentence practice that checks your own words.
02Verify
Prove you know it
Pass the quiz and keep it in a Skills Wallet you can share with anyone who needs proof.
03Career
Find the work that uses it
See which roles lean on this vocabulary, and what they pay in year one.
Learn the next term tomorrow.
Google gives a definition. Prompthaus pairs each term with how it shows up in standups, PRs, prompts, and design reviews. Then it quizzes you until the word sticks. One term a day on iPhone.
