Dual-Action Split Button - Free UI Component

Base Color #2563eb

Text Color #ffffff

Main Label Publish Post

Rounding (px) 8

Vertical Padding (rem) 0.85

Horizontal Padding (rem) 2.25

Font Size (rem) 1

Dual-Action Split Button

A compound button that separates a primary action from a secondary dropdown menu. Features independent hover states for the main button and the chevron toggle.

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Split Button Dropdown</title>
    <link rel="preconnect" href="https://fonts.googleapis.com">
    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
    <link href="https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@500;600;700;800&display=swap" rel="stylesheet">
    <style>
        /* -- Variables ------------------------------------------------- */
        :root {
            --primary: {{btnColor}};            /* Main Background */
            --text: {{textColor}};               /* Text Color */
            --radius: {{borderRadius}}px;        /* Corner Rounding */
            --v-pad: {{vPadding}}rem;            /* Top/Bottom Padding */
            --h-pad: {{hPadding}}rem;            /* Left/Right Padding */
            --font-size: {{fontSize}}rem;        /* Text Size */
            --page-bg: #fff;                     /* Preview Background */
        }

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
            font-family: 'Plus Jakarta Sans', sans-serif;
            background-color: var(--page-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            min-height: 100vh;
        }

/* -- Button Implementation --------------------------------------- */
        .split-btn {
            display: inline-flex;
            box-shadow: 0 4px 12px rgba(0,0,0,0.08);
            border-radius: var(--radius);
            overflow: hidden;
        }

.main-action {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: var(--v-pad) var(--h-pad);
            font-size: var(--font-size);
            font-weight: 700;
            color: var(--text);
            background-color: var(--primary);
            border: none;
            cursor: pointer;
            transition: all 0.2s ease;
            outline: none;
        }

.dropdown-toggle {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: var(--v-pad) 0.75rem;
            background-color: var(--primary);
            color: var(--text);
            border: none;
            cursor: pointer;
            border-left: 1px solid rgba(255, 255, 255, 0.2);
            transition: all 0.2s ease;
            outline: none;
        }

/* Hover States */
        .main-action:hover {
            filter: brightness(1.1);
        }

.dropdown-toggle:hover {
            filter: brightness(1.15);
        }

.dropdown-toggle svg {
            transition: transform 0.3s ease;
        }

/* Simulated Open State */
        .split-btn[data-state="Open"] .dropdown-toggle svg {
            transform: rotate(180deg);
        }

.split-btn:active .main-action,
        .split-btn:active .dropdown-toggle {
            filter: brightness(0.95);
        }

</style>
</head>
<body>

<div class="split-btn" onclick="this.setAttribute('data-state', this.getAttribute('data-state') === 'Open' ? 'Closed' : 'Open')">
        <button class="main-action">{{btnText}}</button>
        <button class="dropdown-toggle">
            <svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="3" stroke-linecap="round" stroke-linejoin="round">
                <polyline points="6 9 12 15 18 9"></polyline>
            </svg>
        </button>
    </div>

</body>
</html>