Build a small webpage without the use of jQuery that does the following:

1. Fetches data from https://jsonplaceholder.typicode.com/posts
2. Displays the post in a friendly format (doesn't have to use fancy CSS, but should be legible)
3. Has the ability to filter posts by userId or id of the post.

You are free to use any online resources you want, and if you copy any code, please cite where you sourced it from.

Please put a repository to this code on Github (if you would like to make it a private repo, just add kwokwilliam to it). It would be ideal if you could also put this onto a gh-pages branch, but that is not necessary.