.display-3 {
    font-size: 4rem;
}

body {
    margin-top: 30px;
}

/* Style the tab */
.tab {
    overflow: hidden;
    border: 1px solid #ccc;
    background-color: #f1f1f1;
    display: flex;
    justify-content: center;    
  }
  
  /* Style the buttons that are used to open the tab content */
  .tab button {
    background-color: inherit;
    border: none;
    outline: none;
    cursor: pointer;
    padding: 14px 16px;
    transition: 0.3s;
  }
  
  /* Change background color of buttons on hover */
  .tab button:hover {
    background-color: #ddd;
  }
  
  /* Create an active/current tablink class */
  .tab button.active {
    background-color: #ccc;
  }
  
  /* Style the tab content */
  .tabcontent {
    display: none;
    padding: 6px 12px;
    border: 1px solid #ccc;
    border-top: none;
  }