HTML, BODY, DIV, SPAN, HEADER, FOOTER, MAIN, IMG {
    margin: 0;
    padding: 0;
    border: none;
    font-family: Verdana;
}
BODY {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}
MAIN, HEADER, FOOTER {
}
HEADER {
    font-family: Helvetica;
    padding: 20px;
    background-color: #B09EB5;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 40px;
    text-align: center;
}
#header-logo {
    width: 10vw;
    min-width: 64px;
    max-width: 128px;
    margin-right: 1vw;
}
MAIN {
    flex: 1 0 auto;
    padding: 20px;
    max-width: 800px;
    margin: 0 auto;
}
SECTION{
    clear: both;
    padding: 20px 0;
}
SECTION IMG{
    max-width: 200px;
}
SECTION:nth-child(even) IMG{
    float: right;
    margin-left: 20px;
}
SECTION:nth-child(odd) IMG{
    float: left;
    margin-right: 20px;
}
FOOTER {
    padding: 20px;
    background-color: #333;
    color: #eee;
    font-size: 12px;
}
FOOTER A,
FOOTER A:hover,
FOOTER A:active,
FOOTER A:visited{
    color: #666;
}
#footer-email {
    text-align: center;
}