The master guide to smooth, realistic shadows in CSS - DEV Community
CSS Tutorial => multiple shadows
15 Most Used CSS Box-Shadow Examples - WidgetCore
How to Create Drop Shadows with the box-shadow Property in CSS3 | Webucator
CSS Box Shadow - DEV Community
CSS box-shadow property with 9 Solid Examples
Multiple Shadows in CSS
12 CSS box shadow Examples - csshint - TheBitX
box-shadow - Codrops
Creating Glow Effects with CSS / Coder's Block
css - box shadows on multiple elements at same level but without overlap? - Stack Overflow
CSS-Tricks on Twitter: "Multiple box-shadows, adjacent borders, text-shadow, low-opacity pseudo-elements... lots of little CSS things here to add some depth to a UI status board. https://t.co/mL0Cu2zfQ4 https://t.co/FInXTUUUIG" / Twitter
Awesome Box Shadow Effect for Card UI – CodeMyUI
Getting Deep Into Shadows | CSS-Tricks - CSS-Tricks
Smoother & sharper shadows with layered box-shadows | Tobias Ahlin