Default :target with CSS

Question

I have this CSS:

And this HTML:<

Answer 1

Spontaneously I'd have to say that the only solution I can think of is unfortunately using JavaScript. Something like:

---

EDIT:

Ok, got a CSS solution. This however requires the default entry #updates-list to be placed last (after #updates-map and any other tabs you may add):

.tab, .tab:target ~ #updates-list  {
  display: none;
}
#updates-list, .tab:target {
  display: block;
}