.asciinema-player-container {
  width: 100%;
  height: auto;
}

/* Related: https://github.com/asciinema/asciinema-player/blob/develop/src/components/Terminal.js : <div class="ap-term" ...>
Old PR: Fix UI regression of asciinema player https://github.com/go-gitea/gitea/pull/26159 */
.ap-term {
  overflow: hidden !important;
}