/* Target only the video page main comment submit button. */
.comments .comment-form { display:flex; align-items:stretch; gap:8px; min-width:0; }
.comments .comment-form input[name="body"] { flex:1 1 auto; width:auto; min-width:0; }
.comments .comment-form .loop-comment-post-button {
  display:inline-flex; flex:0 0 auto; width:auto; min-width:76px;
  padding:12px 17px; align-items:center; justify-content:center;
  white-space:nowrap; overflow-wrap:normal; word-break:normal;
  line-height:1.25; text-align:center;
}
@media(max-width:380px) {
  .comments .comment-form .loop-comment-post-button { min-width:68px; padding-inline:12px; }
}