body {
    background: url(https://html5book.ru/wp-content/uploads/2015/07/background39.png);
  }
  
  .floating-button {
    text-decoration: none;
    display: inline-block;
    width: 140px;
    height: 45px;
    line-height: 45px;
    border-radius: 45px;
    margin: 10px 20px;
    font-family: "Montserrat", sans-serif;
    font-size: 16px;
    text-transform: uppercase;
    text-align: center;
    letter-spacing: 3px;
    font-weight: 600;
    color: #524f4e;
    background: white;
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
    transition: 0.3s;
  }
  
  .floating-button:hover {
    background: #2ee59d;
    box-shadow: 0 15px 20px rgba(46, 229, 157, 0.4);
    color: white;
    transform: translateY(-7px);
  }