Optimizing for different screen size device took a bit of time and also required a certain amount of code, but now I'm gradually getting used to write and organize the code without using modular components structures like React.
What challenges did you encounter, and how did you overcome them?It's a small detail, but without React component, I didn't know how to render elements conditionally depending on screen sizes, but the solution was very simple; just setting "display" property to "none".