Make your WordPress designs pop with CSS shapes and masks
CSS Masking - The mask-image Property
CSS Masks – How To Use Masking In CSS Now
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Pure CSS Image Masking | Plantpot
変幻自在なグラフィック表現!CSS, SVG, Canvasでマスクを使いこなせ - ICS MEDIA
mask-image | Codrops
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Image Mask Effect in CSS & jQuery | CodyHouse
CSS Masking Image, Text and Animation | Complete Guide
Using Masks
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
CSS Masking Image, Text and Animation | Complete Guide