* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    color: #333;
    text-align: center;
    padding: 20px;
}

header {
    background-color: #2196f3;
    color: white;
    padding: 20px;
}

header h1 {
    font-size: 2.5em;
    margin-bottom: 10px;
}

main {
    margin-top: 30px;
}

.content {
    margin-bottom: 40px;
}

.install {
    margin: 20px auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

#installBtn {
    background-color: #4CAF50;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1em;
}

#installBtn:hover {
    background-color: #45a049;
}

footer {
    background-color: #2196f3;
    color: white;
    padding: 10px;
    position: fixed;
    bottom: 0;
    width: 100%;
}