CSS Coding Tips : Minimize code duplication

dabblet.css

/**
 * CSS Coding Tips : Minimize code duplication
 */

button {
	padding: 6px 16px;
	border: 1px solid #446d88;
	background: #58a linear-gradient(#77a0bb, #58a);
	border-radius: 4px;
	box-shadow: 8 1px 5px gray;
	color: white;
	text-shadow: 0 -1px 1px #335166;
	font-size: 20px;
	line-height: 30px;
}

dabblet.html

<button>Yes !

dabblet.js

// alert('Hello world!');

settings.json

{"view":"split-vertical","fontsize":"80","seethrough":"","prefixfree":"1","page":"all"}