Box-shadow, one of CSS3's best new features - CSS3 . Info
Re: [css3-background] box-shadow spread radius and rounded corners from Brendan Kenny on 2010-05-17 (www-style@w3.org from May 2010)
CSS box-shadow: What is the difference between blur and spread? | by nana Jeon | Medium
CSS3: spread value and box-shadow on one side only :: Fleeting Epiphanies
CSS box-shadow Property - GeeksforGeeks
Best Handpicked UI Shadows [Figma & CSS included]
ABDZ CSS box-shadow rollover effect
A Close Look at CSS Box Shadow - WebFX
What's the use of spread-radius when we can increase the shadow size by the horizontal and vertical offsets? - Stack Overflow
CSS box-shadow property with 9 Solid Examples
CSS3: spread value and box-shadow on one side only :: Fleeting Epiphanies
Mastering CSS3 Box Shadows - CodeProject
Behind the feature: shedding light on shadow spread
Using Negative Box-Shadow Spread To Communicate Depth In CSS
Creating Glow Effects with CSS / Coder's Block
A nifty alternative to box-shadows — allround.io
Inner Shadows in CSS: Images, Text and Beyond | Design Shack
A quick reference for shadows in CSS
CSS box-shadow: What is the difference between blur and spread? | by nana Jeon | Medium
Stephanie Eckles on Twitter: "🟣 CSS `box-shadow` Tips: - Layer up your box- shadows for multiple effects - Set only the 3rd value - spread - to create a pseudo-border - Create a