Write a user script to add a zoom toggle button on an article page that allows you to increase/decrease the font size of the text on an article

Wikimedia

Here are steps to do so:

Create an account on Wikipedia (if you haven't done already)
Create a subpage of your user page and name it as common.js: https://en.wikipedia.org/wiki/Special:MyPage/common.js
Write a javascript to add a zoom toggle button on an article page that allows you to increase/decrease the font size of the text on an article
- See guide for writing user scripts on Wikipedia: https://en.wikipedia.org/wiki/Wikipedia:User_scripts
Document your work on the task on the following page: https://www.mediawiki.org/wiki/ChickTech_High_School_Kickoff_2017/Tasks. Include task title, changes made, code snippet, and screenshot of output.
To embed an image on Wikipedia, first upload it to Wikimedia Commons, and then insert it on the article page. Learn more here: https://en.wikipedia.org/wiki/Help:Adding_image

Note: Remember that the effect caused by your code in the common.js file will only be visible to you.

Gabe Mitnick