.loader {
    border: 16px solid #f3f3f3; /* Light grey */
    border-top: 16px solid #3498db; /* Blue */
   display:none;
    /*red*/
    border: 16px solid #c0392b; 
    border-top: 16px solid #cd6155; 
    border-radius: 50%;
    width: 60px;
    height: 60px;
    position: fixed;
    left: 48%;
    top: 30%;
    z-index: 999999;
    transform: translate(-48%,-30%);
    animation: spin 2s linear infinite;
}

.loader-timeline {
    border: 16px solid #f3f3f3; /* Light grey */
    border-top: 16px solid #3498db; /* Blue */
    /*red*/
    display:none;
    border: 16px solid #c0392b;
    border-top: 16px solid #cd6155;
    border-radius: 50%;
    width: 60px;
    height: 60px;
    position: absolute;
    left: 48%;
    top: 50%;
    transform: translate(-48%,-50%);
    z-index: 9999;
    animation: spin 2s linear infinite;
}

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

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