Zenmode: Updated main.css

The notebook-container background is transparent in zenmode.

Author: luckylsk34

src/jupyter_contrib_nbextensions/nbextensions/zenmode/main.css

@@ -14,11 +14,11 @@
     display: none !important;
 }
 
-/*
 #notebook-container {
-    background-color: rgba(255, 255, 255, 0.8);
+    background-color: rgba(255, 255, 255, 0);
 }
 
+/*
 .cell {
     background-color: rgb(255, 255, 255);
 }