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

header {
    background-image: url('images/stars.jpg');
    color: #FFFFFF;
    text-align: center;
    align-content: center;
    min-height: 200px
}

header h2 {
    font-size: 300%;
    padding: 10px;
    font-weight: bold;
}

header p {
    font-size: 120%;
    padding: 20px;
    font-weight: bold;
}

#section {
    display: table;
    width: 100%;
}

nav {
    padding-top: 20px;
    background-color: #077f7f;
    display: table-cell;
    width: 30%;
    vertical-align: top;
}

nav a {
    text-decoration: none;
    color: #ffffff;
    font-weight: bold;
    height: fit-content;
}

nav a:hover {
    background-color: #453f86;
}

nav ul {
    list-style-type: none;
}

article {
    background-color: #efefef;
    display: table-cell;
    width: 70%;
    padding: 10px;
    vertical-align: top;
}

article p {
    padding: 20px;
}

#subheadings {
    background-color: #a4d2e1;
    column-count: 3;
    padding: 20px;
    clear: both;
}

#subheadings h3 {
    padding: 10px 0px;
}

footer {
    background-color: #00017d;
    color: #ffffff;
    text-align: center;
    padding: 30px;
}