stats-preview-cards using Flexbox and other CSS custom properties

I have some questions about my challenge. I recognize that I still need to make progress in responsive design and responsive images using CSS and I have some questions concerning these topics. The first one is rather vague and general. Can you please tell me how you have improved your responsive design skills? In fact I'm curious to see how you have progressed in this domain and if you have any tips to share with me in the field of responsive design and responsive images. The second question is about the site I just shared. Indeed I would have liked to have a media-query with "min=540px". But unfortunately it was not possible because when I reduced the window below 750px, the flex on the bottom left of my container did not have enough space. Do you think it's not a problem if my media querie is set to "min=750px" instead of "min=540px" as i did? Or do you think I should consider reducing the font size of this flexbox? Or do you have an alternative solution? Thank you in advance to all the team. Thanks frontendmentor

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