Fit YT to Width

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Fit YT to Width",
  "version": "1.2",
  "description": "Fits a Youtube video to the width of its window when viewing in a narrow window, designed for using dual windows on a chromebook.",
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": true
  },
  "page_action": {
    "default_icon": "icon.png",
    "default_title": "Fit YT to Witdh"
  },
  "content_scripts": [
    {
      "css": [
        "styles.css"
      ],
      "matches": [
        "https://www.youtube.com/*"
      ]
    }
  ],
  "permissions": [
    "declarativeContent",
    "https://www.youtube.com/*",
    "tabs"
  ],
  "manifest_version": 2
}