.titulo_seccion{
  text-transform:uppercase;
  color:#616161;
  font-size: 21px;
  text-align: center;
  font-weight: bold;
}

.titulo_seccion2{
  text-transform:uppercase;
  color:#252b33;
  font-size: 11px;
  text-align: center;
  font-weight: bold;
}
.separador{
  text-align:center;
  padding-bottom: 1px;
  text-align:center;
}

.separador span {
  width:10%;
  border-bottom:1px solid #ccc;
  display: inline-block;
  margin-bottom:7px;
}

.circulo{
  width:100px;
  display: inline-block;
  border-radius: 50%;
  width: 15px;
  height: 15px;
  background-image: -moz-radial-gradient(45px 45px 45deg, circle cover, #03a9f4 0%, #03a9f4 100%, red 95%);
  background-image: -webkit-radial-gradient(45px 45px, circle cover, #03a9f4, #03a9f4);
  background-image: radial-gradient(45px 45px 45deg, circle cover, #03a9f4 0%, #03a9f4 100%, red 95%);
  margin-left:20px;
  margin-right:20px;

/* width and height can be anything, as long as they're equal */
}

.container-fluid .container {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
}

.titulo_seccion {
  margin-top: 60px;
}

@media (max-width: 680px) {
  .img-responsive {
    width: 800px;
  }
}

@media (max-width: 530px) {
  .img-responsive {
    width: 600px;
  }
}

@media (max-width: 400px) {
  .img-responsive {
    width: 500px;
  }
}