object-fit: contain/cover/scale-down/none for <img> so an image whose
aspect ratio differs from its box is fit (letterbox/crop) instead of
stretched.
transform: parse translate()/translateX/translateY (and scale); apply
translate as a paint-time offset to the element and its subtree, so
translate(-50%,-50%) centering and off-screen skip-links land correctly.
inline-svg: serialize and rasterize inline <svg> subtrees via resvg so
icon sprites and brand logos paint instead of showing blank.
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