"Whenever this property changes, apply that change slowly."
The property transition: width 2s says “when the width changes, animate it over the course of 2 seconds.”
transition: all 0.5s says “when anything changes, spend 0.5s doing it.”
So if you want to round the corners of a button when it’s hovered?
/* Initial state: border-radius is 0.
* When border-radius changes, it'll take 0.3s
* instead of happening immediately */
button {
border-radius: 0;
transition: border-radius 0.3s;
/* any other styles you need ... */
}
button:hover {
border-radius: 20px;
}
Here’s the button:
1 .demo-button { transition: border-radius 0.3s; 2 border: 1px solid dodgerblue; background-color: #fff; 3 border-radius: 0; padding: 1em; color: dodgerblue; } 4 .demo-button:hover { border-radius: 20px; }