Chrome extension-UI: description & styling. — part II | by Anna Ikoki | Extensions Development | Medium
Chrome Extension to Insert Test Data Into Web forms: Lorem Fill
How to Run a HTML File: 12 Steps (with Pictures) - wikiHow
How to Create a Chrome Extension to Edit Websites - Benjamin Rancourt
Insert HTML by Designmodo
javascript - Web Extension - Inject Floating Content into Web Page with Content Script - Stack Overflow
Chrome extension source viewer
Inject HTML into page #chrome-extension
Page Manipulator
GitHub - Ruud14/Page-Manipulator: Browser Extension that can automatically inject custom HTML, CSS or JavaScript into any web-page. This way you can customize any web-page to fit your needs. Currently available on Google