#blog .contenedor{
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
}

#blog article{
  margin: 0px 20px 20px 20px;
  width: 250px;
}

.icon{
  width: 80px;
  display: block;
  margin-left: auto;
  margin-right: auto;
  margin-top: 20px;
  margin-bottom: 20px;
}