A nifty alternative to box-shadows — allround.io
CSS3 Triangle w/ box-shadow
12 CSS Arrow Box Examples Source Code - OnAirCode
CSS filters | Responsive Web Design with HTML5 and CSS3 - Second Edition
Getting Deep Into Shadows | CSS-Tricks - CSS-Tricks
Mastering box-shadow - Become a skilled CSS shadow caster
CSS Art - How to Make Shadows and Angles
CSS Triangles, Multiple Ways | CSS-Tricks - CSS-Tricks
html - CSS Chevron like element WITH border and shadows after li element - Stack Overflow
Pens tagged 'drop-shadow' on CodePen
UI Speech Bubbles & Callout Boxes: Learn how to create a callout box or speech bubble using a box and triangle arrow, with shadow effects with CSS. | by Dale Clifford
Box-Shadows
html - CSS box shadow around a custom shape? - Stack Overflow
CSS Shadow Experiments | Playground from ZURB
javascript - Smart use of CSS to achieve colorful triangle border animation_个人文章 - SegmentFault 思否
CSS Shapes
CSS Art - How to Make Shadows and Angles
geometry - How do CSS triangles work? - Stack Overflow
5 Ways To Create A Triangle With CSS - Coding Dude
cssでshadow(影)を付けるための3つの方法とは?画像付きで徹底解説!! | 侍エンジニアブログ
Drawing a triangle with CSS - DEV Community 👩💻👨💻
