サンプルあり】box-shadow ジェネレーター | Front-end Tools - 初心者でもコピペで簡単に作れる！高機能で直感的な HTML/ CSS ジェネレーター！
CSSの小ネタ: 画像に枠線をつける際、borderよりもbox-shadowの方がより美しく実装できる | コリス
Using box-shadow to construct a border | Codementor
How to Create Multiple Borders in CSS3 - SitePoint
CSSで内側に線を描くボーダーインラインのデザイン集 | ONE NOTES
Using box-shadow to construct a border | Codementor
box-shadow】内側の影inset / 複数の影の指定方法｜webの自由帳
How To Add Realism With CSS Box Shadow And Text Shadow - Vanseo Design
Box-Shadow back on the Menu (and other updates) - CSS3 . Info
Comparison of CSS shadow effects drop shadow and box shadow | Develop Paper
CSS】box-shadowでリアルな影を作成できる便利ツールまとめ - PhotoshopVIP
CodePen - Box-shadow Border Examples
Stacked "Borders" | CSS-Tricks - CSS-Tricks
inset box-shadow showing a border around and need to hide it - Stack Overflow
CSS3: spread value and box-shadow on one side only :: Fleeting Epiphanies
CSS3: spread value and box-shadow on one side only :: Fleeting Epiphanies
Border Radius and Inset Box Shadow Bug solution! - SitePoint
box-shadow - Codrops
Expanded Use of `box-shadow` and `border-radius` | Modern CSS Solutions
CSS】影だけじゃないbox-shadowプロパティの使い方 - 自炊自賛
A Close Look at CSS Box Shadow - WebFX
CSS Box-shadow: There Is Something in the Shadow - DEV Community
CSS Inset Borders
Expanded Use of `box-shadow` and `border-radius` | Modern CSS Solutions
レイアウト崩れし無し！ borderをbox-shadowsで代用させると楽チン | 9ineBB
How to fix IE rendering of border-radius combined with box-shadow? - Stack Overflow
