Masking in the Browser with CSS and SVG — SitePoint
Addy Osmani on Twitter: "Great guide to CSS mask-image: https://t.co/fWLWAGdVvM ~ specify an image or gradient to use as a mask layer. By @rachelandrew https://t.co/QOptFxOHSa" / Twitter
PNG Masking: How to Dynamically Shape Any Image on Your Website - WeGraphics
CSS Masks – How To Use Masking In CSS Now
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