-2
I would like to display only the div corresponding to the button clicked.
By default a tab tab-dados starts active, but if the button name="hidraulica" is clicked hides the div tab-dados and appears to tab-hidraulica. So on.
How can I do that?
Thank you
.tab-dados, .tab-hidraulica, .tab-civil, .tab-eletrica, .tab-comentarios {
  display: none;
  background: #3880ff;
}
.active{
  display: block; 
}
footer{
  margin-top: 50px;
}<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="app">
  <div class="tab-dados active">
    Dados
  </div>
  <div class="tab-hidraulica active">
    hidraulica
  </div>
  <div class="tab-civil">
    civil
  </div>
  <div class="tab-eletrica">
    eletrica
  </div>
  <div class="tab-comentarios">
    comentarios
  </div>
  <footer>
    <button class="btn-tab blue bd1" type="button" name="dados">Dados</button>
    <button class="btn-tab blue bd1 " type="button" name="hidraulica">hidraulica</button>
    <button class="btn-tab blue bd1 " type="button" name="civil">civil</button>
    <button class="btn-tab blue bd1 " type="button" name="eletrica">eletrica</button>
    <button class="btn-tab blue" type="button" name="comentarios">comentarios</button>
  </footer>