body {
  background-color: #f8f9fa;
}

.vertical-center {
  min-height: 100%;  /* Fallback for browsers do NOT support vh unit */
  min-height: 100vh; /* These two lines are counted as one :-)       */

  display: flex;
  align-items: center;
  justify-content: space-evenly;
}

a {
    text-decoration: none;
    color: black;
}