fix: set overscroll-behavior on sidebar to omit scroll-chaining (#61)

Signed-off-by: squidfunk <martin.donath@squidfunk.com>

Author: squidfunk

dist/assets/stylesheets/classic/main.9a39631f.min.css

@@ -47,9 +47,9 @@
     {% endblock %}
     {% block styles %}
       {% if config.theme.variant == "modern" %}
-        {% set href = 'assets/stylesheets/modern/main.f28b7ce3.min.css' | url %}
+        {% set href = 'assets/stylesheets/modern/main.1e989742.min.css' | url %}
       {% else %}
-        {% set href = 'assets/stylesheets/classic/main.9a39631f.min.css' | url %}
+        {% set href = 'assets/stylesheets/classic/main.d9d44b50.min.css' | url %}
       {% endif %}
       <link rel="stylesheet" href="{{ href }}">
       {% if config.theme.palette %}

dist/assets/stylesheets/classic/main.d9d44b50.min.css

@@ -280,6 +280,9 @@
           overflow-y: auto;
           touch-action: pan-y;
           scroll-snap-type: y mandatory;
+          // Prevent scroll chaining to the body when reaching the top/bottom of
+          // the sidebar - in 2026, this works on most modern touch devices
+          overscroll-behavior-y: contain;
           background-color: var(--md-default-bg-color);
           box-shadow:
             0 px2rem(1px) 0 var(--md-default-fg-color--lightest) inset;

dist/assets/stylesheets/modern/main.1e989742.min.css

@@ -77,6 +77,9 @@
         margin: 0;
         overflow: hidden;
         scroll-snap-type: none;
+        // Prevent scroll chaining to the body when reaching the top/bottom of
+        // the sidebar - in 2026, this works on most modern touch devices
+        overscroll-behavior-y: contain;
       }
     }
   }

dist/assets/stylesheets/modern/main.f28b7ce3.min.css

@@ -80,6 +80,9 @@
         position: absolute;
         inset: 0;
         margin: 0;
+        // Prevent scroll chaining to the body when reaching the top/bottom of
+        // the sidebar - in 2026, this works on most modern touch devices
+        overscroll-behavior-y: contain;
       }
     }
   }