html,
body {
  height: 100%;
}

body {
    display: -ms-flexbox;
    display: flex;
    -ms-flex-align: center;
    align-items: center;
    /*padding-top: 40px;
    padding-bottom: 40px;
    background-color: #f5f5f5;*/
    min-height: 100vh;
    flex-direction: column;
  }

  .Site-content {
    flex: 1;
  }