body{
    margin: 0;
    padding: 0;
    font-family: montserrat;
    background:black;
    color:white;
}
.center{
    display:flex;
    text-align: center;
    justify-content: center;
    align-items:center;
    min-height: 100vh;
}
.ring{
    position: absolute;
    width:200px;
    height: 200px;
    border-radius: 50%;
    animation: ring 2s linear infinite;
}
@keyframes ring{
    0%{
        transform: rotate(0deg);
        box-shadow: 1px 5px 2px #e65c00;
    }
    50%{
        transform: rotate(180deg);
        box-shadow: 1px 5px 2px #18b201;
    }
    100%{
        transform: rotate(360deg);
        box-shadow: 1px 5px 2px #0456c8;
    }
}
.ring:before{
    position:absolute;
    content:'';
    left:0;
    top:0;
    height:100%;
    width:100%;
    box-shadow: 0 0 5px rgba(255, 255, 255, .3);
}
span{
    color: #737373;
    font-size: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
    line-height: 200px;
    animation: text 3s ease-in-out infinite;
}
@keyframes text{
    50%{
        color: black;
    }
}