Further adjustments

[ric2016]

I have a few suggestions to further utilize the "wasted" space on wide monitors.

1. When there is room, put the menu on the top, between the title and search areas.
2. When there is room, put the tabs between the names and sidebars on the individual page so that more facts etc. can be seen without scrolling.

I have locally done a few changes to your theme to reduce the font size a slight bit and also remove some trailing space. Including those changes below if you are interested.

body {
font-size: 0.9rem;
line-height: 1.3;
}

[dir] p {
margin-bottom: 0;
}

.btn, .custom-select {
font-size: 0.9rem;
}

[dir] dd {
margin-bottom: 0.2rem;
}