cott Labz
Field Notes: Frontend & CSS
Layout bugs, CSS traps, and browser quirks, followed from the symptom on screen back to the line that caused it.
The Diff That Compared Two Broken Pages
A pixel-by-pixel check passed on every page while two visible regressions were live - because the baseline already had them.
The Scroll That Wouldn't Stop
Two pages, the same exact symptom, and two mistakes that had nothing to do with each other.
The Widget That Broke Two Ways
The same trust badge, added the same way, broke for two reasons that had nothing to do with each other.
Async Everywhere Would Have Broken the Footer
A site-wide script audit, and the one script the rule said should defer but couldn't.
The Fix That Dropped the Score First
A mobile PageSpeed audit that dropped before it improved - and why.
100vh Isn't What You Think
Why a full-height hero cuts off its own CTA on mobile Safari.
The Specificity Trap
A shared brand style quietly shrank on eight pages - a specificity fight, not a missing class.