.is-figcaption {
  position: relative;
}

.figcaption-in-picture {
  position: absolute;
  bottom: 16px;
  right: 8px;
  color: #fff;
  font-size: 1rem;
  text-shadow: 0 0 2px #000, 0 0 4px #000;
}

.w-2_3 {
  width: calc(100% / 3 * 2);
}

.w-1_3 {
  width: calc(100% / 3);
}

.w40 {
  width: 40%;
}

.grow {
  flex-grow: 1;
}

.fz18 {
  font-size: 1.8rem;
}

@media screen and (max-width: 768px) {
  .w40 {
    width: 100%;
  }

  .w-2_3 {
    width: 100%;
  }

  .w-1_3 {
    width: 100%;
  }
}