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<div class="coso3">

<div class="posts">45 <span>Respuestas</span></div> 
<div class="views">104 <span>Vistas</span></div>

</div>

/* Columna 3 */
.coso3 {
  width: 144px;
  padding:4px;
  border:2px solid #000000;
}

.coso3 .posts, .coso3 .views  {
  width:50px; 
  height:50px;
  padding:10px;
  font-size:17px;
  display: inline-block;  
  background-color: #000000;
  color: #ffffff;
}

.coso3 .posts span, .coso3 .views span {
  font-family: arial;
  font-size:8px;
  display:block;
}