Solved: How do I add a SOLID drop shadow to a 50% opaqe fi... - Adobe Support Community - 11049259
CSS-Tricks - 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://buff.ly/2WSvWso | Facebook
css - Setting opacity on image causes an overlapping element's box-shadow to go away - Stack Overflow
CSS custom properties in box-shadow color function render incorrectly in Safari - Stack Overflow
How to change the box shadow height, width and opacity in flutter? - Stack Overflow
How to change the box shadow height, width and opacity in flutter? - Stack Overflow
Optimize Drop Shadows - minimize image size with graphic optimization of drop shadow and photoshop
Lower a Layer's Opacity without Affecting the Opacity of the Drop Shadow? - How Do I Do That in Photoshop? [Book]