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 box-shadow Property
How To Add Realism With CSS Box Shadow And Text Shadow - Vanseo Design
How to Create Multiple Borders in CSS3 - SitePoint
Getting Deep Into Shadows | CSS-Tricks - CSS-Tricks
A Close Look at CSS Box Shadow - WebFX
Upscale your website with the box-shadow property
html - CSS box-shadow: Only apply to part of an element - Stack Overflow
CSS box-shadow Generator | Front-end Tools - High-performance and intuitive HTML / CSS generator
CSS Tip ⚡ Multiple Box shadows
CSS box-shadow: What is the difference between blur and spread? | by nana Jeon | Medium