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<title>CSS Backdrop Filters: Grayscale(100%) with transparent background color</title>
<link rel="author" title="Hendrik Wagenaar" href="mailto:hendrikw@chromium.org">
<link rel="help" href="https://drafts.fxtf.org/filter-effects-2/#BackdropFilterProperty">
<link rel="help" href="https://drafts.fxtf.org/filter-effects-1/#supported-filter-functions">
<link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=497522">
<link rel="match" href="reference/backdrop-f