body {
    margin: 0 !important;
    overflow: hidden;
    background-image: linear-gradient(to bottom right, #000000, #240000 , rgb(170, 0, 0));
}

.all {
    width: 100%;
    height: 100vh;
}

.all_mail {
    color: #720000;
    text-decoration: none;
    font-size: 0.5vw;
    position: absolute;
    bottom: 0;
    right: 0;
    margin: 0.4vw;
}

.all_image-div {
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.all_image {
    width: 25vw;
    height: auto;
    animation: heartbeat 3s infinite;
    filter: brightness(0) invert(1);
    z-index: 1000;
    transition: all 0.3s ease-in-out;
}

@keyframes heartbeat {
    0%, 100% {
        transform: scale(1);
    }
    18% {
        transform: scale(1.03);
    }
}

@media (max-width: 800px) {
    .all_image {
        width: 40vw; /* Aumenta el tamaño de la imagen */
    }
}