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

/* Body and Content Styles */
body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
}

.content {
    padding: 20px;
}

/* Header and Navigation Styles */
header {
    background-color: #333;
    padding: 10px 0;
}

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

nav ul.menu > li {
    position: relative;
    margin-right: 20px;
}

nav ul.menu > li > a {
    color: white;
    text-decoration: none;
    padding: 10px 20px;
    display: block;
}

nav ul.menu > li > a:hover {
    background-color: #444;
}

/* Submenu Styles */
nav ul.submenu {
    position: absolute;
    top: 40px;
    left: 0;
    background-color: #444;
    display: none;
    list-style: none;
    padding: 0;
}

nav ul.submenu li {
    width: 100%;
}

nav ul.submenu li a {
    padding: 10px;
    color: white;
    text-decoration: none;
    display: block;
}

nav ul.submenu li a:hover {
    background-color: #555;
}

nav ul.menu > li:hover ul.submenu {
    display: block;
}