all.css

/* Reset some default styles and provide a clean slate */ 
* {
    margin: 0; 
    padding: 0; 
    box-sizing: border-box;
}
/* Apply a simple, elegant font to the entire page */
body {
    font-family: 'Arial', sans-serif;
}
/* Add a subtle background color and center content */
html, body {
    height: 100%;
    background-color: #f0f0f0;
    display: flex;
    justify-content: center;
    align-items: center;
}
/* Style links with a different color and remove underlines */
a {
    text-decoration: none;
    color: #007BFF;
}
/* Create a responsive, centered container */
• container {
    max-width: 800px; margin: 0 auto;
    padding: 20px;
    background-color: #fff;
    box-shadow: 0 2px 5px gba(0, 0, 0, 0.1);
    border-radius: 5px;
}
/* Style buttons with a modern look */
button {
    background-color: #007BFF;
    color: #fff; border: none; 
    border-radius: 5px;
    padding: 10px 20px;
    cursor: pointer;
    transition: background-color 0.3s;
}
button: hover {
    background-color: #0056b3;
}
/* Add responsive design for mobile devices */
@media (max-width: 768px) {
    .container｛
    padding: 10px;
    ｝
    button {
        padding: 8px 16px;
    }
}
/* Highlight important elements with a soft shadow */
•highlight {
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.2);
}