When validating responsiveness of the mobile portrait breakpoint, most of the time I accidently shrink the canvas way too much. It would be nice to lock the canvas at around 300px on the scale so that it doesn't accidently go below that point. And since there are would be about 1% of the devices that render the website below the 300px breakpoint, I do not find it useful to optimize my site to the 250px breakpoint anyway.
Regards
Muhammad Mahad
Muhammad Mahad
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