body {
    margin: 0;
    padding: 0;
    overflow: hidden;
}

#particles-js {
    position: absolute;
    width: 100%;
    height: 100%;
    background-color: #191919;
    background-image: url('');
    background-repeat: no-repeat;
    background-size: cover;
    background-position: 50% 50%;
}

#heart {
    width: 400px;
    height: 400px;
    position: absolute;
    top: 50%;
    left: 50%;
    margin-top: -100px;
    margin-left: -200px;
}

#heart svg {
    position: relative;
    width: 100%;
    height: 100%;
    animation: heartbeat 1.5s ease-in-out infinite;
}

@keyframes heartbeat {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.2);
    }

    100% {
        transform: scale(1);
    }
}

#particles-js canvas {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 1;
}