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

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    background-color: #f4f4f4;
    color: #333;
}

.container {
    width: 80%;
    margin: auto;
    overflow: hidden;
}

header {
    background: #35424a;
    color: #ffffff;
    padding: 10px 0;
}

.logo {
    width: 200px;
    float: left;
    margin-right: 10px;
}

h1 {
    display: inline;
}

nav ul {
    list-style: none;
    padding: 0;
}

nav ul li {
    display: inline;
    margin-left: 20px;
}

nav ul li a {
    color: #ffffff;
    text-decoration: none;
}

main {
    padding: 20px;
    background: #ffffff;
    margin-top: 20px;
}

h2 {
    margin-bottom: 10px;
    border-bottom: 2px solid #35424a;
    padding-bottom: 5px;
}

pre {
    background: #e4e4e4;
    padding: 10px;
    border-radius: 5px;
    overflow-x: auto;
}

footer {
    text-align: center;
    padding: 10px 0;
    background: #35424a;
    color: #ffffff;
    position: relative;
    bottom: 0;
    width: 100%;
}