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Thank you for checking out this solution!

Just asking for my next solution: what kind of CSS philosophy that you use? I'm considering utility-first CSS, but any other suggestions are welcome!

1. How far do people actually test the responsiveness of a website (the smallest width it can be, weird aspect ratios, etc.)?

2. A bit off-topic I guess: How long and how deep did you study programming before you consider yourself competent? I find it hard to gauge how far I'm right now, not to mention I have been jumping between languages (sometimes its because I lose interest, other times life just happens I guess),

Thank you for looking at my solution and answering my questions!

Here's my submission for 3-column preview page! Any feedback will be appreciated 😃

I use SCSS for this project, and I do use mixins. However, class selectors can achieve the same result.

Should I mix them, or should I stick with one of them?

Most of the time I eyeballed the measurements, often by switching tabs on the browser. Its pretty hard to get an accurate result this way. I have also seen solutions that have very specific value on properties like padding, margins, etc. They often got super accurate result.

Is it okay if I got the sizing a bit off?

If not, how does people achieve almost pixel perfect spacing, sizes, adjustments, etc?

What common ways people center a div before CSS flexbox exists?