@media only screen and (min-width: 481px) {
    .footer {
        text-align: center;
    }
}

body,
html {
    margin: 0;
    height: 100%;
    font-family: Arial, Helvetica, sans-serif;
}

a {
    color: CanvasText;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.flex-container {
    display: flex;
    flex-direction: column;
    height: 100%;
}

header {
    background-color: rgba(0, 0, 0, 0.89);

    /* Making it sticky */
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header {
    max-width: 800px;
    width: 100%;
    padding: 8px;
    box-sizing: border-box;

    /* Centers the element */
    margin: 0 auto;
}

.center {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    text-align: center;
}

.content {
    max-width: 800px;
    margin: 0 auto;
    padding: 8px;
    box-sizing: border-box;
}

.footer {
    padding: 0px 8px 8px 8px;
    box-sizing: border-box;
    color: CanvasText;
}