Single price grid component responsive, desktop first workflow

What are you most proud of, and what would you do differently next time?

i love my clean step by step process, i want to do it cleaner

What challenges did you encounter, and how did you overcome them?

the bug after @mediaquery, somehow the default justify content is end, i tried to center it, but it cant, so i made the justify content to start to make sure the code works, after that i recenter the flex content

i also encounter a problem that the left blue box need to be manually set which position it need to be, or else the default is always top:0;

What specific areas of your project would you like help with?

the @mediaquery for left blue box when set to mobile mode, i like to know is there any solution that doesn't involve setting the position manually