How do you keep the video/one box from expanding too wide

Support
1


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image1230×541 108 KB

100% zoom on Brave browser

/* --- 7. EMBEDS & MEDIA --- */
.twitterstatus {
  max-width: 345px !important;
  width: auto !important;
}

.video-placeholder-container,
.video-placeholder-wrapper,
.lazy-video-wrapper {
  max-width: 690px !important;
  width: auto !important;
}

.allowlistedgeneric {
  max-width: 690px !important;
  width: auto !important;
  padding: 10px !important;
  margin: 0 3px 3px 3px !important;
}
2

Comparitively this is on Discourse at 100%

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image804×433 72.2 KB

100% on Firefox

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image1265×536 115 KB

3

Well I guess I solved it with Gemini:
*If this is over kill let me know.

/* YouTube/video player fix */
.video-placeholder-container,
.video-placeholder-wrapper,
.lazy-video-wrapper {
  /* This is the shield: it locks the player UI to 690px */
  max-width: 690px !important;
  width: 100% !important; 
}

.lazy-video-wrapper iframe,
.lazy-video-wrapper video {
  /* This fills the shield */
  width: 100% !important;
  max-width: 100% !important; 
  height: auto !important;
  aspect-ratio: 16 / 9 !important;
  margin: 0 !important;

}

/* Specifically target the uploaded video player container */
.video-container {
  max-width: 690px !important;
  text-align: left !important;
}

100% on Brave browser:

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image699×516 98.9 KB