I have 3 images, they are aligned correctly, but from the resolution of the print below they start to appear one below the other, even though they have space to be displayed at most next to each other and the third below. I do not know if I understood myself, but I'm trying to get a behavior like this template here: link
HTML:
<sectionclass="container" id="portfolio">
<div class="row">
<div class="col-md-12 text-center">
<h1 class="">Portfólio</h1>
<h3 class="subtitle">Alguns do meus trabalhos voltados para Web</h3>
</div>
</div>
<div class="row ">
<div class="col-md-4 col-sm-4 col-xs-12">
<figure>
<img src="img/hidrau.png" alt="Hidraurio Mangueiras Hidraulicas">
<figcaption>
<a href="http://hidrauriomangueiras.com.br" target="_blank"><button >Visitar</button></a>
<a href="https://github.com/tiagosilveiraa/hidraurio" target="_blank"><button >Github</button></a>
</figcaption>
</figure>
</div>
<div class="col-md-4 col-sm-4 col-xs-12">
<figure>
<img src="img/gescolar.png" alt="Sistema de Gestão Escolar">
<figcaption>
<a href="http://tiagotestes.esy.es/Gescolar" target="_blank"><button >Visitar</button></a>
<a href="https://github.com/tiagosilveiraa/gescolar" target="_blank"><button >Github</button></a>
</figcaption>
</figure>
</div>
<div class="col-md-4 col-sm-4 col-xs-12">
<figure>
<img src="img/gescolar.png" alt="Sistema de Gestão Escolar">
<figcaption>
<a href="http://tiagotestes.esy.es/Gescolar" target="_blank"><button >Visitar</button></a>
<a href="https://github.com/tiagosilveiraa/gescolar" target="_blank"><button >Github</button></a>
</figcaption>
</figure>
</div>
</div>
</section>