/*Please include to ant HTML file
  <div id="mr-spinner-container"><div id="mr-spinner"></div></div>
  */

 #mr-spinner-container {
    background-color: transparent;
    position: relative;
    left: calc(50% + 50px);
    visibility: visible;
    height: 5px;
    top: 20px;
 }

 div#mr-spinner {
     border: 4px solid gold;
     width: 100px;
     height: 100px;
     border-radius: 50%;
     border-left-color: red;
     animation: spin 1s linear infinite;
 }

 @keyframes spin {
     0% {
         transform: rotate(0deg);
     }

     100% {
         transform: rotate(360deg);
     }
 }