body {
    font-family: 'Roboto', sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f0f0f0;
}
.container {
    max-width: 800px;
    margin: 50px auto;
    padding: 20px;
    background-color: #fff;
    border-radius: 5px;
    box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.1);
}
header {
    text-align: center;
    margin-bottom: 30px;
}
h1 {
    margin-top: 0;
}
main {
    text-align: center;
}
.mui-btn {
    margin-top: 20px;
}

pre {
    background: #f4f4f4;
    border: 1px solid #ddd;
    border-left: 3px solid #f36d33;
    color: #666;
    page-break-inside: avoid;
    font-family: monospace;
    font-size: 15px;
    line-height: 1.6;
    margin-bottom: 1.6em;
    max-width: 100%;
    overflow: auto;
    padding: 1em 1.5em;
    display: block;
    word-wrap: break-word;
    text-align: justify;
}