Visual Regression Testing with CSS Blend Modes

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Last week I saw Una Kravets give a very inspiring talk at Generate Conf about using CSS Filters and Mix Blend Modes. One demo in particular got my attention because Una showed us how we could overlay two layouts on top of each other and use blend modes to spot all the differences between them.

I was pretty excited about this idea and got to thinking: could we create visual regression testing with just one line of CSS? Turns out …

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Visual Regression Testing with CSS Blend Modes is a post from CSS-Tricks

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