.fab {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: #00447cfc;
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    text-align: center;
    line-height: 60px;
    cursor: pointer;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: background-color 0.3s;
  }
  
  .fab:hover {
    background-color: #0056b3;
  }