diff --git a/in/cache.html.mako b/in/cache.html.mako
index bee26f4..079bb8c 100644
--- a/in/cache.html.mako
+++ b/in/cache.html.mako
@@ -24,7 +24,7 @@
             <span class="text">US East (N. Virginia)</span>
             <span class="caret"></span>
           </a>
-          <ul class="dropdown-menu" role="menu">
+          <ul class="dropdown-menu region-list-dropdown" role="menu">
             <li>
               <input type="text" id="dropdown-search" class="ms-2 mb-2 form-control dropdown-search" placeholder="Search" />
             </li>
diff --git a/in/opensearch.html.mako b/in/opensearch.html.mako
index 1cf8201..5f17e1e 100644
--- a/in/opensearch.html.mako
+++ b/in/opensearch.html.mako
@@ -24,7 +24,7 @@
             <span class="text">US East (N. Virginia)</span>
             <span class="caret"></span>
           </a>
-          <ul class="dropdown-menu" role="menu">
+          <ul class="dropdown-menu region-list-dropdown" role="menu">
             <li>
               <input type="text" id="dropdown-search" class="ms-2 mb-2 form-control dropdown-search" placeholder="Search" />
             </li>
diff --git a/in/rds.html.mako b/in/rds.html.mako
index ef09aa8..19e2468 100644
--- a/in/rds.html.mako
+++ b/in/rds.html.mako
@@ -24,7 +24,7 @@
             <span class="text">US East (N. Virginia)</span>
             <span class="caret"></span>
           </a>
-          <ul class="dropdown-menu" role="menu">
+          <ul class="dropdown-menu region-list-dropdown" role="menu">
             <li>
               <input type="text" id="dropdown-search" class="ms-2 mb-2 form-control dropdown-search" placeholder="Search" />
             </li>
diff --git a/in/redshift.html.mako b/in/redshift.html.mako
index 163216c..f503be0 100644
--- a/in/redshift.html.mako
+++ b/in/redshift.html.mako
@@ -24,7 +24,7 @@
             <span class="text">US East (N. Virginia)</span>
             <span class="caret"></span>
           </a>
-          <ul class="dropdown-menu" role="menu">
+          <ul class="dropdown-menu region-list-dropdown" role="menu">
             <li>
               <input type="text" id="dropdown-search" class="ms-2 mb-2 form-control dropdown-search" placeholder="Search" />
             </li>