* {
    box-sizing: border-box;
}

a {
    color: brown;
    text-decoration: underline red;
}

aside {
    flex: 1;
    width: 200px;
    padding: 5px;
}


h1 {
    font-size: 35px;
}

h2 {
    margin: 0px;
}

h3 {
    margin: 0px;
}

hr {
    margin: 0px;
}

sub {
    font-size: 10px;
}

marquee>img {
    padding: 0px 10px;
    height: 31px;
}


.main {
    flex: 3;
    order: 2;
    padding: 5px;
}

.header {
    background-image: url("/images/beautiful.png");
    size: 100%;
    background-position: -20px -480px;
    padding: 1px;

    text-align: center;
}

.footer {
    background-image: url("/images/beautiful.png");
    size: 100%;
    background-position: -20px -480px;
    padding: 1px;

    text-align: center;
}

.container {
    max-width: 900px;
    margin: 0 auto;
}


.flex {
    display: flex;
}



.left {
    order: 1;
    position: sticky;

}

.right {
    order: 3;
    flex: 1;
    position: sticky;
    top: 0;
}


.box {
    background-color: white;
    border: 1px solid wheat;
    padding: 0.5em;

    text-align: center;
}