<link href="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<!------ Include the above in your HEAD tag ---------->
<div class="contenedor">
Efecto Brillo con CSS3
<div class="conte_imagen">
<img src="https://lh3.googleusercontent.com/-VpplI1o__1c/UXQBmto1SFI/AAAAAAAAFdg/Dl0LwQafi9o/s278/anuncio.jpg" />
<div class="activa_hover"></div>
</div>
<div>