html, body {
    height: 100%;
    margin: 0;
  }
  
  body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
  }
  
  .content-wrapper {
    flex: 1 0 auto;
  }
  
  footer {
    flex-shrink: 0;
    margin-top: auto;
  }
  
  .table td, .table th {
    vertical-align: middle;
  }