 }
 
 .coding-tip { 
+
+	box-sizing: border-box;
 	background-color: #669900;
 	color: #FFF;
 	margin: 0.25em;

	background-color: #CCC;
	color: #222;
	display: block;
}



	display: none; 
	border: 1px solid #667;
	border-radius: 0.5em;
	max-width: 680px;
}

.coding-tip code {
