box-shadow

dabblet.css

/**
 * box-shadow
 */
div {
  height: 30px;
  background: lightgrey;
  margin: 0 auto;
  width: 300px;
  //box-shadow: inset 2px 0 red, inset -2px 0 red, inset 0 -2px red;
  box-shadow: inset 2px 2px green, inset -2px -2px red;
}

dabblet.html

<div>test box-shadow</div>

dabblet.js

// alert('Hello world!');

settings.json

{"view":"separate","fontsize":"100","seethrough":"","prefixfree":"1","page":"all"}