.bandacabecera{
  background: #007bff;
}
.high{
  font: 24px;
  color: #444;
  margin-top: 20px;
  font-style: italic;
}

.linkSite{
  background-color: #003399;
}

@media screen and (max-width:800px){
  .high{
    text-align: center;
  }
}