diff --git a/src/assets/style/variable.less b/src/assets/style/variable.less
index 8cd6576..3c96934 100644
--- a/src/assets/style/variable.less
+++ b/src/assets/style/variable.less
@@ -12,6 +12,7 @@
 	dark-white: #E7EAEF;
 	yellow: #FF0;
 	purple: PURPLE;
+	transparent: transparent;
 }
 
 :root {