@Nam-Hai
Posted
There is a lot that could be said but I'll try to focus on the most important.
Import the font used in the original design, it is specified in the style-guide.md provided with the design folder. (Use the google font import which is very simple).
Try to use flexbox the most efficient way. Flexbox is a very VERY powerfull tool. For exemple, for the main section, you should have use flexbox property on the .product div justify-content: space-between and not set margin to .product-detail div.
Best advice would be to practice Flexbox, for exemple there is the website https://flexboxfroggy.com/#en which is great for that.
I also suggest you to start with easier challenge on Frontend mentor, as it is clear that you have a lot more to learn before starting to do bigger project. Small project are great to see quickly multiple things to work and not being overwhelmed.
Continue to work and you'll be fire !
