main.css

.header{
    background: lightgray;
    top: 0; left: 0;
    height: 60px;
    width: 100%;
    font-size: 30px;
    padding-top: 20px;
    text-align: center;
    align-items: center;
    display: block;
    flex-direction: column;
    position: fixed;
    font-family: 'Courier New', Courier, monospace;
    font-weight: 600;
  }
  
  .form{
    display:block;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-family: 'Courier New', Courier, monospace;
    
  }
  
  .form input{
    font-size: 12px;
    width: 100%;
  }

  .btn {
    margin: 0;
    padding: 0.5rem 1rem;
  
    font-family: 'Courier New', Courier, monospace;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
  
    display: inline-block;
    width: auto;
  
    margin: 8px;
    border: none;
    border-radius: 4px;
    
  }
  
  .card{
    flex-direction: row;
    display: flex;
    width: 500px;
    height: 150px;
    border: 2px solid black;
    border-radius: 15px;
    margin: 100px auto;
    align-items: center;
    justify-content: center;
    
  }
  
  .footer{
    position : fixed;
    bottom : 0; left: 0;
    padding: 10px;
    background:gray;
    color: white;
    width: 100%;
    height: 2%;
    align-items: center;
    text-align: justify;
    font-family: 'Courier New', Courier, monospace;
  }