body {  
    font-family: Arial, sans-serif;  
    margin: 20px;  
    padding: 0;  
    background-color: #f4f4f4;  
}  
  
h1 {  
    text-align: center;  
    color: #333;  
}  
  
input[type="text"], button {  
    width: calc(100% - 22px); /* 100% width minus some padding */  
    padding: 10px;  
    margin-top: 10px;  
    margin-bottom: 20px;  
    box-sizing: border-box; /* makes sure padding and width work correctly */  
}  
  
button {  
    background-color: #007bff;  
    color: white;  
    border: none;  
    cursor: pointer;  
}  
  
button:hover {  
    background-color: #0056b3;  
}  
  
pre {  
    white-space: pre-wrap; /* keeps whitespace and line breaks */  
    word-wrap: break-word; /* breaks long words */  
    background-color: #fff;  
    padding: 10px;  
    border: 1px solid #ddd;  
    margin-top: 20px;  
}