#cmetric-scroll-loader span {
    display: inline-block;
    width: 30px;
    height: 30px;
    border: 4px solid #ccc;
    border-top-color: #333;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}