@import url('https://fonts.googleapis.com/css?family=Poppins:300,400,500,600,700,800,900&display=swap');
*
{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins';
}
body
{
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg,#03a9f4,#03a9f4 50%,#333 50%,#333);
}
.box
{
    position: relative;
    text-align: center;
}
.box h1
{
    color: #fff;
}
.box h2
{
    color: #f3f3f3;
    display: flex;
    justify-self: center;
    align-items: center;
    font-size: 15em;
    text-shadow: -25px 25px 40px rgba(0,0,0,0.5),
                -10px 10px 0 rgba(255,255,255,0.5),
                -20px 20px 0 rgba(255,255,255,0.2),
                -30px 30px 0 rgba(255,255,255,0.05)
}
.box h2 .zero
{
    position: relative;
    display: inline-block;
    width: 200px;
    height: 200px;
    background: linear-gradient(to bottom, #fff,#777);
    border-radius: 50%;
    margin: 0 15px;
    box-shadow: -25px 25px 40px rgba(0,0,0,0.5);
}
.box h2 .zero::before
{
    content: '';
    position: absolute;
    top: 50%;
    right: 0;
    transform: translateY(-50%);
    width: 180px;
    height: 180px;
    background: linear-gradient(to top, #fff,#777);
    border-radius: 50%;
}
.box h2 .zero::after
{
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: linear-gradient(135deg,#03a9f4,#03a9f4 50%,#333 50%,#333);
    box-shadow: inset 0 0 30px rgba(0,0,0,1);
    animation: animate 5s steps(4) infinite;
}
@keyframes animate
{
    0%
    {
        transform: translate(-50%,-50%) rotate(0deg);
    }
    100%
    {
        transform: translate(-50%,-50%) rotate(360deg);
    }
}