{% block css %}
  <style>
    /*** Spinner ***/
    .back-circle {
    /* background: rgba(0, 0, 0, 0.8); */
    background-color: rgba(16, 53, 82, 0.8);
    width: 100%;
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 9999; }

    #circle {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 150px;
    height: 150px;
    z-index: 99999; }

    .loader {
    width: calc(100% - 0px);
    height: calc(100% - 0px);
    border: 8px solid rgba(22, 37, 52, 0);
    border-top: 8px solid #ff5840; /*** Modificar Color de Spinner ***/
    border-radius: 50%;
    animation: rotate 5s linear infinite; }

    @keyframes rotate {
    100% {
        transform: rotate(360deg); } }
    /*** End Spinner ***/
  </style>
{% endblock css %}

<!-- SPINNER  -->
  <div id="spinner" class="container">
    <div class="back-circle">
      <div id="circle">
        <div class="loader">
          <div class="loader">
              <div class="loader">
                 <div class="loader"></div>
              </div>
          </div>
        </div>
      </div>
    </div>
  </div>
<!-- Fin SPINNER -->