.jr-foto { position: relative; line-height: 0; }
.jr-foto img { width: 100%; height: auto; display: block; }
.jr-credito {
  position: absolute;
  right: 4ch;
  bottom: 8px;
  color: #fff !important;
  font-size: 12px;
  line-height: 1.3;
  text-align: right;
  text-shadow: 0 0 3px rgba(0,0,0,.8);
  max-width: 70%;
}
@media (max-width: 600px) {
  .jr-credito { right: 3ch; font-size: 11px; }
}