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<!-- Arbitrary CSS properties (Tailwind v3.3+) --> <div class="[mask-type:luminance] [content-visibility:auto]"> Arbitrary CSS properties </div> <!-- Scroll snap with arbitrary properties --> <div class="overflow-x-auto flex gap-4 [scroll-snap-type:x_mandatory]"> <div class="shrink-0 w-80 [scroll-snap-align:start] bg-white rounded-xl p-4">Slide 1</div> <div class="shrink-0 w-80 [scroll-snap-align:start] bg-white rounded-xl p-4">Slide 2</div> <div class="shrink-0 w-80 [scroll-snap-align:start] bg-white rounded-xl p-4">Slide 3</div> </div> <!-- Arbitrary variants: target specific children --> <ul class="[&>li]:py-2 [&>li]:border-b [&>li]:border-gray-200 [&>li:last-child]:border-0"> <li>First item</li> <li>Second item</li> <li>Third item</li> </ul> <!-- nth-child arbitrary variant --> <div class="grid grid-cols-3 gap-2 [&>*:nth-child(3n+1)]:bg-blue-50 [&>*:nth-child(3n+2)]:bg-green-50 [&>*:nth-child(3n)]:bg-rose-50"> <div class="p-3 rounded">A</div> <div class="p-3 rounded">B</div> <div class="p-3 rounded">C</div> </div> <!-- CORRECT: full class names in conditionals (JIT can detect these) --> <div class="{{ $status === 'active' ? 'bg-green-100 text-green-800' : 'bg-red-100 text-red-800' }} px-2 py-1 rounded-full text-xs font-semibold"> Status badge </div> <!-- WRONG: JIT cannot detect these concatenated fragments --> <!-- BAD: class="bg-{{ $color }}-500" BAD: class="`text-${size}`" GOOD: always write full class names -->
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