app/assets/stylesheets/active_admin/_base.scss in activeadmin-2.10.0 vs app/assets/stylesheets/active_admin/_base.scss in activeadmin-2.10.1

@@ -31,9 +31,19 @@
   @import "./pages/logged_out";
   @import "./structure/footer";
   @import "./structure/main_structure";
   @import "./structure/title_bar";
 
+  html {
+    box-sizing: border-box;
+  }
+
+  *,
+  *:before,
+  *:after {
+    box-sizing: inherit;
+  }
+
   body {
     @include sans-family;
     line-height: 1.5;
     font-size: 72%;
     background: $body-background-color;