Split Center CSS Button

Free37 lines · no JS

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Theme

A real <button> carrying .btn-split-center — the preview is the stylesheet, not a picture of it.

States

default

hover

focus-visible

active

not declared

disabled

not declared

.btn-split-center {
  position: relative;
  z-index: 0;
  overflow: hidden;
  display: inline-block;
  padding: 12px 26px;
  border: 2px solid #f43f5e;
  border-radius: 10px;
  background: transparent;
  color: #f43f5e;
  font-family: inherit;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: color 0.3s ease;
}
.btn-split-center::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  border-radius: 8px;
  background: #f43f5e;
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.3s ease;
}
.btn-split-center:hover {
  color: #ffffff;
}
.btn-split-center:hover::before {
  transform: scaleX(1);
}
.btn-split-center:focus-visible {
  outline: 2px solid #f43f5e;
  outline-offset: 3px;
}

Self-contained · MIT · no build step.btn-split-center

Outline & GhostRoundedSlideHover Reveal

Implementation notes

About the Split Center CSS button

Split Center uses a lightweight treatment that keeps secondary actions visible. Its rounded corners balance product-friendly softness with a clear boundary. Its structure comes from a 2px border. The slide, hover reveal details are included in the copy-paste CSS.

Usage

<button class="btn-split-center">Button</button>

Pair it with the CSS tab above — the class is self-contained.

Before shipping: keep the semantic button element, verify contrast on your actual background and add a visible:focus-visible state. If you retain motion, include a prefers-reduced-motion override.

Built with: HTML + plain CSS
Shape: Rounded
Exports: CSS, Tailwind, React
License: MIT · commercial use

Complete the look

Build the interface around this button

We matched its palette, surface, geometry and motion to a complete UI system — like composing an outfit, not browsing unrelated parts.

Style DNA · v1

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