Just figured out my grid math was fighting the browser's own rounding
Spent two evenings chasing 1px gaps in a 12 column layout I hand coded for a portfolio site. The culprit was me adding margin percentages on top of a grid template instead of letting `gap` handle the spacing. Took a screenshot at 2x zoom to spot it, and the seams only showed up when the container hit an odd pixel width. Anyone else run into rounding quirks when mixing `fr` units with percentage based padding?