.credits > a {
  display: block;
}

img.thumbnail {
  height: 1em;
}

.row, .col {
  display: flex;
  flex-grow: 1;
  flex-basis: 0;
}

.row {
  flex-direction: row;
}

.col {
  flex-direction: column;
}

.row > div, .col > div {
  position: relative;
  justify-content: center;
}

.title-page h1 {
  font-size: 2em;
  padding: 0.25em;
  text-transform: uppercase;
}

.credits {
  padding: 0.5em;
  text-align: left;
  justify-content: flex-start;
}
.credits > div > a {
  display: block;
  font-size: 0.75em;
}