body{
    font-family: 'Courier New', Courier, monospace;
    background:linear-gradient(to left, #8e9299, white);
    display: flex;
    justify-content: center;
    align-items: center;
}
.btn {
    background-color: DodgerBlue; /* Blue background */
    border: none; /* Remove borders */
    color: white; /* White text */
    padding: 12px 16px; /* Some padding */
    font-size: 16px; /* Set a font size */
    cursor: pointer; /* Mouse pointer on hover */
  }
  
  /* Darker background on mouse-over */
  .btn:hover {
    background-color: RoyalBlue;
  }

  .container {
    padding: 40px;
    width: 80%;
    max-width: 500px;
    background-color: white;
    border-radius: 16px;
    box-shadow: 0px 8px 20px black;
    text-align: center;
    
  }
  h1 {
    align-items: center;
  }
  input[type=text], input[type=password], select, input[type=number] {
    margin: 5px 0 22px 0;
    border-radius: 5px;
  }
  #message {
  display:none;
  background: #f1f1f1;
  color: #000;
  position: relative;
  padding: 20px;
  margin-top: 10px;
}

#message p {
  padding: 10px 35px;
  font-size: 18px;
}

/* Add a green text color and a checkmark when the requirements are right */
.valid {
  color: green;
}

.valid:before {
  position: relative;
  left: -35px;
  content: "✔";
}

/* Add a red text color and an "x" icon when the requirements are wrong */
.invalid {
  color: red;
}

.invalid:before {
  position: relative;
  left: -35px;
  content: "✖";
}