I don't understand what I'm doing, but here is a patch that adds aria-controls attribute that, according to a candidate recommendation (​http://www.w3.org/TR/wai-aria/states_and_properties#aria-controls), is supposed to tell some software that the down/up arrow icon controls the header drop-down.

At least it *hopefully* doesn't break anything and doesn't add any requirements for more attributes.

It must be "gmg assetlink". Maybe "bin/gmg assetlink" for clarity.

base.css, line 672:

#code_of_conduct_list strong {

color: rgb(255, 255, 255);

}

This makes some text in Terms of Service white, which is incompatible with the Airy theme. Maybe needs only overriding in the theme, or something more general.