Expanded Use of `box-shadow` and `border-radius` | Modern CSS Solutions
3 ways to style CSS box-shadow effects - LogRocket Blog
CSS3: spread value and box-shadow on one side only :: Fleeting Epiphanies
How to Use CSS box-shadow: Tricks and Examples - The Tech Edvocate
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Derek Briggs on X: "To recap - use a 1px slightly transparent box shadow as a border instead of a traditional css border on elements with shadows to get a gradient border
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93 Beautiful CSS box-shadow examples - CSS Scan
css - how to add box-shadow effect, only to border of div? - Stack Overflow
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