.spinner {
    width: 40px;
    height: 40px;
    position: relative;
    margin: 0 auto;
  }
  .loading {
    display: flex;
    justify-content: center;
    align-items: center;
}
  .spinner div {
    box-sizing: border-box;
    display: block;
    position: absolute;
    width: 32px;
    height: 32px;
    margin: 6px;
    border: 4px solid #ccc;
    border-radius: 50%;
    animation: spinner 1.2s cubic-bezier(0.5, 0, 0.5, 1) infinite;
    border-color: #ccc transparent transparent transparent;
  }
  
  .spinner div:nth-child(1) {
    animation-delay: -0.45s;
  }
  
  .spinner div:nth-child(2) {
    animation-delay: -0.3s;
  }
  
  .spinner div:nth-child(3) {
    animation-delay: -0.15s;
  }
  
  @keyframes spinner {
    0% {
      transform: rotate(0deg);
    }
    100% {
      transform: rotate(360deg);
    }
  }
  
  /* Hide iframe until it's loaded */
  #iframe-container {
    position: relative;
    width: 100%;
    height: 800px; /* Adjust height as needed */
    overflow: hidden;
  }
  
  #iframe-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
    display: none;
  }
  
  #iframe-container.loading iframe {
    display: block;
  }
  
  #iframe-container.loading .spinner {
    display: block;
  }