.heart {
    position: absolute;
    width: 10px;
    height: 10px;
    background-color: red;
    transform: rotate(45deg);
    animation: heartAnimation 1s ease-out forwards;
}

.heart::before,
.heart::after {
    content: '';
    position: absolute;
    width: 10px;
    height: 10px;
    background-color: red;
    border-radius: 50%;
}

.heart::before {
    top: -5px;
    left: 0;
}

.heart::after {
    left: -5px;
    top: 0;
}

@keyframes heartAnimation {
    0% {
        transform: rotate(45deg) scale(1);
        opacity: 1;
    }
    100% {
        transform: rotate(45deg) scale(2);
        opacity: 0;
    }
}