Clean up color box sizes

services/web/public/stylesheets/app/ol-style-guide.less

@@ -16,6 +16,7 @@
 			content: '@{colorVal}';
 		}
 		.color-rgb-val::before {
+			font-size: 10px;
 			content: '@{colorValAsRGB}';
 		}
 	}
@@ -29,8 +30,8 @@
 .color-box {
 	background: white;
 	margin: 10px 4px;
-	flex: 1;
 	border-radius: 4px;
+	width: 16.666%;
 	.renderColorSwatchClasses(ol-blue-gray-1);
 	.renderColorSwatchClasses(ol-blue-gray-2);
 	.renderColorSwatchClasses(ol-blue-gray-3);