diff --git a/package/ctcgfw/luci-theme-argonv3/htdocs/luci-static/argon/css/cascade.css b/package/ctcgfw/luci-theme-argonv3/htdocs/luci-static/argon/css/cascade.css
index 7d0aee9029..4019bfb57e 100644
--- a/package/ctcgfw/luci-theme-argonv3/htdocs/luci-static/argon/css/cascade.css
+++ b/package/ctcgfw/luci-theme-argonv3/htdocs/luci-static/argon/css/cascade.css
@@ -3189,6 +3189,9 @@ input[name="nslookup"] {
     outline: 0;
     box-shadow: none;
   }
+  select {
+    background-color: #1e1e1e !important;
+  }
   #cbi-dropbear h2,
   #cbi-dropbear .cbi-map-descr,
   #cbi-dropbear .cbi-map-descr abbr,
diff --git a/package/ctcgfw/luci-theme-argonv3/htdocs/luci-static/argon/less/cascade.less b/package/ctcgfw/luci-theme-argonv3/htdocs/luci-static/argon/less/cascade.less
index cbc3381a70..845a3fb969 100644
--- a/package/ctcgfw/luci-theme-argonv3/htdocs/luci-static/argon/less/cascade.less
+++ b/package/ctcgfw/luci-theme-argonv3/htdocs/luci-static/argon/less/cascade.less
@@ -4067,6 +4067,10 @@ input[name="nslookup"] {
         box-shadow: none;
     }
 
+    select {
+        background-color: #1e1e1e !important;
+    }
+
     #cbi-dropbear h2,
     #cbi-dropbear .cbi-map-descr,
     #cbi-dropbear .cbi-map-descr abbr,