*{
    margin: 0;
    padding: 0;
}
html{
    animation: html 4s ease infinite;
}
.heart{
    width: 200px;
    height: 200px;
    background-color: #eb3f84;
    animation: heart 4s ease infinite;
    transition: all 1s ease;
    position: absolute;
    left: 50%;
    top: 50%;
    margin-left: -100px;
    margin-top: -100px;
}
.heart::before{
    content: '';
    width: 200px;
    height: 200px;
    background-color: #eb3f84;
    border-radius: 50%;
    position: absolute;
    top:-100px;
    left:0;
    animation: left 4s ease infinite;
    transition: all 1s ease;
}
.heart::after{
    content: '';
    width: 200px;
    height: 200px;
    background-color: #eb3f84;
    border-radius: 50%;
    position: absolute;
    top:0;
    left:100px;
    animation: right 4s ease infinite;
    transition: all 1s ease;
}
@keyframes html {
    0%{
        background-color: #eb3f84;
    }
    50%{
        background-color: #fff;
    }
    100%{
        background-color: #eb3f84;
    }
}
@keyframes heart {
    0%{
        transform: rotate(0deg);
        border-radius: 200px;
        background-color: #fff;
    }
    30%{
        transform: rotate(45deg);
        border-radius: 10px;
    }
    50%{
        background-color: #eb3f84;
    }
    70%{
        transform: rotate(45deg);
        border-radius: 10px;
    }
    100%{
        transform: rotate(90deg);
        border-radius: 200px;
        background-color: #fff;
    }
}
@keyframes left{
    0%{
        top:0;
        background-color: #fff;
    }
    30%{
        top:-100px;
    }
    50%{
        background-color: #eb3f84;
    }
    70%{
        top:-100px;
    }
    100%{
        top:0;
        background-color: #fff;
    }
}

@keyframes right{
    0%{
        left:0;
        background-color: #fff;
    }
    30%{
        left:-100px;
    }
    50%{
        background-color: #eb3f84;
    }
    70%{
        left:-100px;
    }
    100%{
        left:0;
        background-color: #fff;
    }
}