body {
    font-family: 'Arial', sans-serif;
    background-color: pink;
    text-align: center;
    padding-top: 50px;
}

.heart {
    font-size: 48px;
    cursor: pointer;
    animation: pulse 1s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.2);
    }
    100% {
        transform: scale(1);
    }
}

#message {
    margin-top: 20px;
    font-size: 24px;
    color: red;
}