/* Reset some default styles */
body, h1, p, ul {
    margin: 0;
    padding: 0;
}

/* Apply a background color to the body */
body {
    background-color: #f5f5f5;
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
}

/* Style the header */
header {
    background-color: #f5f5f5;
    color: #000;
    padding: 10px 0;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

nav ul {
    list-style: none;
    display: flex;
}

nav li {
    margin-right: 20px;
}

nav a {
    text-decoration: none;
    color: #000;
    font-weight: 500;
}

.content {
    margin-top: 75px;
}