Riot Games - Frontend Engineer Test

What I Used

*Vanilla Javascript ES6
*Jquery in some places
*Got some tips online for Ajax get request. Because, I am mostly using fetch or axios

Tested Devices

*1920x1080 Desktop
*Iphone X, Iphone 6/7/8, Samsung Galaxy S9, Huawei Mate 10 Pro

How could be improved?

*Without using Jquery, it can be faster.
*For styling, scss or stylus may be more organized.
*If I have a chance to choose a library for styling while building the app in React I prefer Styled Components

Special Thanks For The Opportunity