body, html {
    margin: 0;
    padding: 0;
    overflow: auto;
}

section {
    display: block;
    width: 60%;
    margin: auto;
    margin-top: 16px;
    padding: 16px;
}

h1 {
    display: block;
    width: 100%;
    margin: auto;
    margin-top: 16px;
    padding: 16px;
    color: #fff;
}

p {
    display: block;
    width: 100%;
    margin: auto;
    padding: 16px;
    color: #fff;
}
ul {
    list-style-type: none;
    width: 70%;
    margin: auto;
    padding: 16px;
    background-color: #000080;
    border: 2px solid white;
    border-radius: 10px;
}

li {
    display: inline;
    margin: auto;
    border-right: 2px solid #fff;
    border-left: 2px solid #fff;
}

li a {
    display: inline;
    color: #fff;
    text-align: center;
    padding: 14px 16px;
}

li a:hover {
    background-color: #8080FF;
}

.active {
    background-color: #ff8000;
    color: #000;
}

.semi-transparent-background {
    background-color: rgba(255, 255, 255, 0.5);
}

#stars {
    display: block;
    position: fixed;
    top: 0; left: 0;
    z-index: -1;
    pointer-events: none;
}

#main_content {
    position: relative;
    z-index: 1;
}