.login-box {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 350px;
    padding: 30px 40px 40px 30px;
    transform: translate(-50%, -50%);
    background: rgba(0, 0, 0, .5);
    box-sizing: border-box;
    box-shadow: 0 15px 25px rgba(0, 0, 0, .6);
    border-radius: 10px;
  }
  
  .login-box h2 {
    margin: 0px 0px 45px 0px;
    padding: 0;
    color: #fff;
    text-align: center;
  }
  
  .login-box .login-user-box {
    position: relative;
  }
  
  .login-box .login-user-box input {
    width: 93%;
    padding: 10px 10px;
    font-size: 16px;
    color: #fff;
    margin-bottom: 30px;
    border: none;
    border-bottom: 1px solid #fff;
    outline: none;
    background: transparent;
  }
  
  .login-box .login-user-box label {
    position: absolute;
    top: -30px;
    left: 0;
    padding: 10px 0;
    font-size: 12px;
    color: #568492;
    pointer-events: none;
    transition: .5s;
  }
  
  .login-boton-enter {
    width: 50%;
    border: none;
    background-color: #64afb3;
    border-radius: 5px;
    padding: 10px;
    margin-left: 80px;
    margin-top: 20px;
    cursor: pointer;
  }
  
  #btn-login:hover {
    background-color: #b5dee1;
  }