.heart.heartt .fill {
    fill: transparent;
    box-shadow: 20px 0 0 0 red;
}
.heart .border {
    fill: red;
}

.contenedor .heart.heart.heartt {
    height: 50px;
    width: 50px;
    position: absolute;
    transition: transform 1s ease;
    opacity: 0.2;
}
.contenedor .heart {
    height: 150px;
    width: 150px;
    position: absolute;
    transition: transform 1s ease;
    opacity: 0.2;
}

.contenedor {
    height: 100vh;
    width: 100vw;
    display: flex;
    background: transparent;
    position: absolute;
    z-index: -1;
}