Buttons
Corner Outline Button
A minimal outline button with animated corner expansion on hover.
HTML/CSS/JSavailableBeginner
buttonoutlinehover
Author: Sai Srujan @saiusesgithub
Live iframe preview
<button class="button-89" role="button">Corner Outline</button>
<style>
.button-89 {
--b: 3px;
--s: 0.45em;
--color: #373b44;
padding: calc(0.5em + var(--s)) calc(0.9em + var(--s));
color: var(--color);
--_p: var(--s);
background:
conic-gradient(
from 90deg at var(--b) var(--b),
#0000 90deg,
var(--color) 0
)
var(--_p) var(--_p) /
calc(100% - var(--b) - 2 * var(--_p))
calc(100% - var(--b) - 2 * var(--_p));
transition: 0.3s linear, color 0s, background-color 0s;
outline: var(--b) solid #0000;
outline-offset: 0.6em;
font-size: 16px;
border: 0;
cursor: pointer;
user-select: none;
-webkit-user-select: none;
touch-action: manipulation;
}
.button-89:hover,
.button-89:focus-visible {
--_p: 0px;
outline-color: var(--color);
outline-offset: 0.05em;
}
.button-89:active {
background: var(--color);
color: #fff;
}
</style>