diff --git a/html/css/custom/styles.css b/html/css/custom/styles.css
index 0eac91abac36730d9a3296fdad974e13f7f696c0..5bec4b33f17cbc0875608fac8fc4b0c4c260e769 100644
--- a/html/css/custom/styles.css
+++ b/html/css/custom/styles.css
@@ -265,6 +265,21 @@ A.grey:visited, A.grey, .grey {
     font-size: 14px;
 }
 
+.select2-search--dropdown {
+
+    background-color: #333;
+}
+
+.select2-results {
+
+    background-color: #333;
+}
+
+.select2-container--default .select2-selection--single {
+    background-color: #333;
+    border: 1px solid #333;
+    border-radius: 4px;
+}
 
 button, input, optgroup, select, textarea {
     background-color: black;