button {
    position: absolute;
    bottom: 2%;
    left: 50%;
    transform: translateX(-50%);
    border: 1px solid white;
    border-radius: 5px;
    font-size: 0.9rem;
    padding: 0.5rem 0.9em;
    background: #000000;
    color: white;
    -webkit-font-smoothing: antialiased;
    font-weight: bold;
    cursor: pointer;
    transition: all .5s;
    z-index: 5;
  }
  
  button:hover {
    background: #ffffff;
    color: #000000;
  }