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Beating Heart Animation in CSS

Sarnav_s
Created Nov 17, 2025
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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Beating Heart Animation</title>
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            display: flex;
            justify-content: center;
            align-items: center;
            min-height: 100vh;
            overflow: hidden;
        }

        .container {
            text-align: center;
            position: relative;
        }

        .heart {
            position: relative;
            width: 200px;
            height: 200px;
            margin: 0 auto;
            animation: heartbeat 1.2s ease-in-out infinite;
        }

        .heart::before,
        .heart::after {
            content: "";
            position: absolute;
            top: 0;
            width: 100px;
            height: 160px;
            background: #d00000;
            border-radius: 100px 100px 0 0;
            box-shadow: 0 0 30px rgba(208, 0, 0, 0.5);
        }

        .heart::before {
            left: 100px;
            transform: rotate(-45deg);
            transform-origin: 0 100%;
        }

        .heart::after {
            left: 0;
            transform: rotate(45deg);
            transform-origin: 100% 100%;
        }

        @keyframes heartbeat {
            0% {
                transform: scale(1);
            }
            10% {
                transform: scale(1.1);
            }
            20% {
                transform: scale(1);
            }
            30% {
                transform: scale(1.1);
            }
            40% {
                transform: scale(1);
            }
            100% {
                transform: scale(1);
            }
        }

        .pulse-ring {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 200px;
            height: 200px;
            border: 3px solid #d00000;
            border-radius: 50%;
            animation: pulse 1.2s ease-out infinite;
            opacity: 0;
            pointer-events: none;
        }

        .pulse-ring:nth-child(2) {
            animation-delay: 0.4s;
        }

        .pulse-ring:nth-child(3) {
            animation-delay: 0.8s;
        }

        @keyframes pulse {
            0% {
                transform: translate(-50%, -50%) scale(0.5);
                opacity: 0;
            }
            50% {
                opacity: 0.8;
            }
            100% {
                transform: translate(-50%, -50%) scale(1.5);
                opacity: 0;
            }
        }

        .text {
            margin-top: 80px;
            color: #d00000;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            font-size: 2rem;
            font-weight: 300;
            letter-spacing: 3px;
            text-shadow: 0 0 20px rgba(208, 0, 0, 0.5);
            animation: textPulse 1.2s ease-in-out infinite;
        }

        @keyframes textPulse {
            0%, 40%, 100% {
                opacity: 0.7;
            }
            10%, 30% {
                opacity: 1;
            }
        }

        .particles {
            position: absolute;
            width: 100%;
            height: 100%;
            pointer-events: none;
        }

        .particle {
            position: absolute;
            width: 8px;
            height: 8px;
            background: #d00000;
            border-radius: 50%;
            opacity: 0;
            animation: float 3s ease-in-out infinite;
        }

        .particle:nth-child(1) {
            left: 20%;
            animation-delay: 0s;
        }

        .particle:nth-child(2) {
            left: 40%;
            animation-delay: 0.5s;
        }

        .particle:nth-child(3) {
            left: 60%;
            animation-delay: 1s;
        }

        .particle:nth-child(4) {
            left: 80%;
            animation-delay: 1.5s;
        }

        @keyframes float {
            0% {
                bottom: 0;
                opacity: 0;
                transform: translateX(0) scale(1);
            }
            50% {
                opacity: 1;
            }
            100% {
                bottom: 100%;
                opacity: 0;
                transform: translateX(100px) scale(0.5);
            }
        }

        @media (max-width: 600px) {
            .heart {
                width: 150px;
                height: 150px;
            }

            .heart::before,
            .heart::after {
                width: 75px;
                height: 120px;
            }

            .heart::before {
                left: 75px;
            }

            .pulse-ring {
                width: 150px;
                height: 150px;
            }

            .text {
                font-size: 1.5rem;
                margin-top: 60px;
            }
        }
    </style>
</head>
<body>
    <div class="particles">
        <div class="particle"></div>
        <div class="particle"></div>
        <div class="particle"></div>
        <div class="particle"></div>
    </div>

    <div class="container">
        <div class="heart">
            <div class="pulse-ring"></div>
            <div class="pulse-ring"></div>
            <div class="pulse-ring"></div>
        </div>
        <div class="text">HEARTBEAT</div>
    </div>
</body>
</html>