The problem Algorithm Visualizer solves

Algorithm Visualizer is a web app for visualizing a bunch of different sorting algorithms Like Bubble Sort, Insertion Sort, Merge Sort etc. With the functionality of Speed Control and Array Size Control.

Challenges I ran into

There was not any major challenge, but a couple of problems while using HTML and CSS, i.e. designing the webpage. Thinking of background images, colours, fonts, animations etc was a bit difficult task .
I overcome it with the evergreen hit and trial method i.e. keep on tracking what looks good and what not.