Code:

<a href="#something">Show</a> <a href="#truc">Truc</a>
<div id="something">Bingo!</div>
<div id="truc">
Truc !
</div>

#something {
  display: none;
}

#something:target {
  display: block;
}

#truc{
  display: none;
}

#truc:target{
  display: block;
}