stle.css

body{
 margin: 0;
 padding: 0%;
 font-family: montserrat;
 background: black;
 color: antiquewhite;


}
.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 #e6003d;
    }
    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%;
    border-radius: 50%;
    box-shadow: 0 0 5px rgba(255,255,255,.3);
}
span{
    color: #737373;
    font-size: 20px;
    text-transform: uppercase;
    latter - spacing: 1px;
    line -height : 20px;

}