Make audio players 100% wide in Chrome. https://chrome.google.com/webstore/detail/wide-audio-players/nhimhabjmplhihabgdijoeggnkalfkme

main.css

video {
  width: 100%;
}

manifest.json

{
  "manifest_version": 3,
  "name": "Wide audio players",
  "version": "1.1",
  "description": "Make audio players 100% wide.",
  "content_scripts": [
    {
      "matches": [
        "*://*/*.aac*",
        "*://*/*.flac*",
        "*://*/*.m4a*",
        "*://*/*.mka*",
        "*://*/*.mp3*",
        "*://*/*.ogg*",
        "*://*/*.opus*",
        "*://*/*.wav*",
        "file://*/*.aac*",
        "file://*/*.flac*",
        "file://*/*.m4a*",
        "file://*/*.mka*",
        "file://*/*.mp3*",
        "file://*/*.ogg*",
        "file://*/*.opus*",
        "file://*/*.wav*"
      ],
      "css": ["main.css"],
      "all_frames": true
    }
  ]
}