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perf: cut homepage mobile LCP via content-visibility on calculator cards #5

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Merged
kitfunso merged 1 commit into from
Jun 4, 2026
Merged

perf: cut homepage mobile LCP via content-visibility on calculator cards #5

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7 changes: 7 additions & 0 deletions src/pages/index.astro
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Original file line number Diff line number Diff line change
Expand Up @@ -865,6 +865,13 @@ const categories = getCategories();
.calculator-card {
animation: card-appear 0.5s cubic-bezier(0.19, 1, 0.22, 1) forwards;
opacity: 0;
/* Skip style/layout/paint for off-screen cards so the ~140 below the fold
don't gate the in-viewport LCP card's paint. Render-skipping only (content
stays in the DOM and is indexable); contain-intrinsic-size reserves an
approximate height and the `auto` keyword caches the real size after first
render so scrolling does not jump. */
content-visibility: auto;
contain-intrinsic-size: auto 240px;
}

/* After initial load, disable animation for instant filtering */
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