diff --git a/css/details.css b/css/details.css
index 5f2233f..1ad7ea1 100644
--- a/css/details.css
+++ b/css/details.css
@@ -440,7 +440,7 @@
   position: absolute;
   top: 50%;
   transform: translateY(-50%);
-  left: -5px;
+  left: -4px;
   width: 5px;
   height: 8px;
 }
diff --git a/css/details.less b/css/details.less
index 88cb87a..118c01c 100644
--- a/css/details.less
+++ b/css/details.less
@@ -493,7 +493,7 @@
                             position: absolute;
                             top: 50%;
                             transform: translateY(-50%);
-                            left: -5px;
+                            left: -4px;
                             width: 5px;
                             height: 8px;
                         }