.pswp__caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1rem;
  background: rgba(0,0,0,.6);
  color: #fff;
  font-size: 1rem;
  line-height: 130%;
  text-align: center;
  text-wrap: balance;
}