Version 1.0.0 (CSS fix, README update)

Author: clivezhg

README.md

@@ -92,6 +92,13 @@ Constraints
 - AJAX data source is not supported.
 - It is a little slower than plain Select2, because there are extra operations to do. Anyway, according to my test (you can check "Example 3" in "example/example.html", click the "India -> north"), 1500 options is basically acceptable, which is enough in most of the real world cases.
 
+Illustration
+------------
+"Example 3" in "example/example.html":
+
+<img src="https://cloud.githubusercontent.com/assets/22025586/24068585/aa8c2294-0bcd-11e7-926f-db7dd34b50dd.png">
+
+
 Copyright and license
 ---------------------
 The license is available within the repository in the [LICENSE][license] file.

src/select2totree.css

@@ -41,19 +41,23 @@
 
 .s2-to-tree li.select2-results__option.non-leaf .expand-collapse:hover {
 	color: red;
+	cursor: pointer;
 }
-.s2-to-tree li.select2-results__option.non-leaf .expand-collapse:before { /* IE8 doesn't support :: */
+.s2-to-tree li.select2-results__option.non-leaf .expand-collapse:before { /* no :: in IE8 */
 	content: "+";
 	position: absolute;
 	left: -0.35em;
 	top: 0.1em;
 	font-size: larger;
-	cursor: pointer;
 }
 .s2-to-tree li.select2-results__option.non-leaf.opened .expand-collapse:before {
 	content: "−";
 }
 
+.s2-to-tree .select2-results__option[aria-disabled="true"] .expand-collapse {
+	color: black;
+}
+
 .s2-to-tree .item-label {
 	display: inline-block;
 	margin-left: 0.5em;
@@ -83,6 +87,7 @@
 .s2-to-tree.select2-container li.select2-results__option[aria-selected="true"] > span.item-label {
 	background-color: #ddd;
 }
+
 .s2-to-tree.select2-container li.select2-results__option--highlighted[aria-selected],
 .s2-to-tree.select2-container li.select2-results__option[aria-selected="true"] {
 	background-color: inherit;