<div id="loading-bar-spinner" class="spinner"><div class="spinner-icon"></div></div>

#loading-bar-spinner.spinner {
    left: 50%;
    margin-left: -20px;
    top: 50%;
    margin-top: -20px;
    position: absolute;
    z-index: 19 !important;
    animation: loading-bar-spinner 400ms linear infinite;
}

#loading-bar-spinner.spinner .spinner-icon {
    width: 40px;
    height: 40px;
    border:  solid 4px transparent;
    border-top-color:  #00C8B1 !important;
    border-left-color: #00C8B1 !important;
    border-radius: 50%;
}

@keyframes loading-bar-spinner {
  0%   { transform: rotate(0deg);   transform: rotate(0deg); }
  100% { transform: rotate(360deg); transform: rotate(360deg); }
}