Galaxy S21 Ultra: viewport, screen size, CSS pixel ratio, cross-browser compatibility.

Galaxy S21 Ultra: viewport size, screen size, dimensions, CSS pixel ratio. CSS Media Queries for Galaxy S21 Ultra. Test cross-browser compatibility with Galaxy S21 Ultra.

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Samsung Galaxy S21 Ultra, CSS viewport resolution, pixel density, screen size, media queries

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Galaxy S21 Ultra: viewport, screen size, CSS pixel ratio, cross-browser compatibility.