diff --git a/static/style.css b/static/style.css
index 6c43e2d..f2ee9b8 100644
--- a/static/style.css
+++ b/static/style.css
@@ -139,11 +139,14 @@ body nav input {
 }
 
 .node .node.collapsed > .title::before {
-    content: "🮥";
+    content: "›";
+    vertical-align: text-bottom;
 }
 
 .node .node.expanded > .title::before {
-    content: "🮦";
+    content: "›";
+    transform: rotate(90deg);
+    display: inline-block;
 }
 
 .node .title {