.header__navigation .header__navigation--logo a img {
    max-height: 50px;
}

/* Consolidate space between expandable sections when two are next to each other */
.expand-container + .expand-container { margin-top: 0; }

/* add a border line between the top level articles in the tree */ 
ul.vp-tree__container > li { border-bottom: 1px #d3d3d35c solid; }

/* widen the articles to be the full width of the available space */ 
.vp-article { --_content-width: max(var(--content-width,75ch),100%); }