.title_area
{
    padding-top: 1em;
    padding-bottom: 1em;
    border-bottom: 1px solid #CCC;
}
.collection_title
{
    letter-spacing: 0.25em;
    font-size: 3em;
}
.selector_area
{
    display: flex;
    flex-flow: row wrap;
    padding-top: 1em;
    padding-bottom: 1em;
    border-bottom: 1px solid #CCC;
}
.selector_area > div
{
    margin-right: 4em;
    font-size: 1.5em;
}
@media only screen and (max-width: 600px) 
{
    .selector_area > div
    {
        margin-right: 4em;
        font-size: 1em;
    }
}