diff --git a/package/ctcgfw/luci-theme-argon/htdocs/luci-static/argon/css/cascade.css b/package/ctcgfw/luci-theme-argon/htdocs/luci-static/argon/css/cascade.css
index 2fcfd5119f..e3b04dd446 100644
--- a/package/ctcgfw/luci-theme-argon/htdocs/luci-static/argon/css/cascade.css
+++ b/package/ctcgfw/luci-theme-argon/htdocs/luci-static/argon/css/cascade.css
@@ -3478,6 +3478,9 @@ pre.command-output {
     border-color: darkslateblue !important;
     outline: 0;
   }
+  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-argon/htdocs/luci-static/argon/less/cascade.less b/package/ctcgfw/luci-theme-argon/htdocs/luci-static/argon/less/cascade.less
index 83b08f5377..54f1d1a4a9 100644
--- a/package/ctcgfw/luci-theme-argon/htdocs/luci-static/argon/less/cascade.less
+++ b/package/ctcgfw/luci-theme-argon/htdocs/luci-static/argon/less/cascade.less
@@ -4257,6 +4257,10 @@ pre.command-output {
 
     }
 
+    select {
+        background-color: #1e1e1e !important;
+    }
+
     #cbi-dropbear h2,
     #cbi-dropbear .cbi-map-descr,
     #cbi-dropbear .cbi-map-descr abbr,