html, body {
    margin: 0;
    width: 100%;
    height: 100%;

    color: #171717;
    background-color: #fefefe;
    font-family: 'Times New Roman', Times, serif;
}

.site-outer {
    width: 100%;
    height: 100%;

    display: flex;
    align-items: center;
    justify-content: center;
}

.site-inner {
    width: 54rem;
    height: 36rem;

    display: flex;
    flex-direction: column;

    border: 1px solid #171717;
    background-color: #e5e5e5;
}

.header {
    padding: 2px 0;
    height: fit-content;
    width: 100%;

    display: flex;
    align-items: flex-end;

    border-bottom: 1px solid #171717;
}

.header > h1 {
    padding-left: 6px;
}

.center {
    flex: 1;
    width: 100%;

    display: flex;
    flex-direction: row;
}

.navbar {
    padding-left: 6px;
    height: 100%;
    width: 6rem;

    display: flex;
    flex-direction: column;
    gap: 4px;

    border-right: 1px solid #171717;
}

.navbar > a:first-child {
    padding-top: 10px;
}

.content-inner {
    padding: 10px;
}

.footer {
    padding: 2px 0;
    height: fit-content;
    width: 100%;
    
    border-top: 1px solid #171717;
}

.footer > span {
    padding-left: 6px;
}

/* disable all defaults */
h1, h2, h3, h4, h5, h6 {
    margin: 0;
    padding: 0;   /* or margin-bottom */
}