Carbon CSS button
Matte graphite with a monospace label. Hover, click and tab to it to see every state.
CSS
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;700;800&display=swap');
.btn {
display: inline-flex;
align-items: center;
justify-content: center;
gap: .5em;
padding: 14px 28px;
font-family: 'JetBrains Mono', monospace;
font-size: 14px;
font-weight: 500;
line-height: 1.2;
color: #e4e4e7;
background: #18181b;
border: 1px solid #3f3f46;
border-radius: 8px;
box-shadow: inset 0 1px 0 0 rgba(255, 255, 255, .059999999999999997779553950749686919152736663818359375);
cursor: pointer;
text-decoration: none;
white-space: nowrap;
-webkit-tap-highlight-color: transparent;
transition: transform 200ms cubic-bezier(.2,.8,.2,1), box-shadow 200ms cubic-bezier(.2,.8,.2,1), filter 200ms cubic-bezier(.2,.8,.2,1), background 200ms cubic-bezier(.2,.8,.2,1), color 200ms cubic-bezier(.2,.8,.2,1);
}
.btn:hover {
filter: brightness(1.0500000000000000444089209850062616169452667236328125);
background: #27272a;
color: #ffffff;
}
.btn:active {
transform: translateY(1px) scale(0.979999999999999982236431605997495353221893310546875);
transition-duration: 100ms;
}
.btn:focus-visible {
outline: 3px solid #18181b;
outline-offset: 3px;
}
@media (prefers-reduced-motion: reduce) {
.btn {
transition: none;
animation: none;
}
}HTML
<button class="btn" type="button">
npm install
</button>How this button is built
- Background: a solid #18181b fill.
- Type: JetBrains Mono, weight 500, 14px, in #e4e4e7.
- Shape: 8px rounded corners with 14px × 28px padding, plus a 1px solid border.
- Depth: an inset highlight along the edge.
- Interaction: on hover it brightens slightly and switches to #27272a with #ffffff text, and it squishes slightly when clicked, with 200ms transitions.
- Accessibility: a visible
:focus-visiblering for keyboard users, and all motion turns off underprefers-reduced-motion.
How to use it
- Copy the CSS into your stylesheet. The
@importline loads the JetBrains Mono font from Google Fonts. Move it to the top of your file, or drop it if you already load the font. - Paste the HTML where you want the button. It works on
<button>,<a>and<input type="submit">. - Change the label, or rename the
.btnclass if it clashes with your framework. Want a different colour or size? Open it in the editor, change it visually, and copy the new code.