/* Resetting some default styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* General styles */
body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    background-color: #ffffffec;
    margin: 0;
    padding: 0;
}

header {
    background: #333;
    color: #fff;
    padding: 10px 0;
    text-align: center;
}

nav ul {
    list-style: none;
    background: #333;
    text-align: center;
    padding: 10px;
}

nav ul li {
    display: inline;
    margin-right: 10px;
}

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

main {
    padding: 30px;
}

section {
    margin-bottom: 20px;
    margin-left: 20px;
}

section > h2 {
    margin-left: -10px;
}

section > ul > li {
    margin-left: 20px;
}

footer {
    background: #333;
    color: #fff;
    text-align: center;
    padding: 10px 0;
    position: fixed;
    bottom: 0;
    width: 100%;
}

.right-aligned {
    float: right;
    margin-left: 10px;
}