diff --git a/shellinabox/styles.css b/shellinabox/styles.css
index 4d3b8df..d025c94 100755
--- a/shellinabox/styles.css
+++ b/shellinabox/styles.css
@@ -244,6 +244,9 @@
 /* SYSTEM colors */
 #vt100 .ansiDef   { color:            #000000; }
 
+#vt100 #scrollable.inverted .ansiDef
+                  { color:            #ffffff; }
+
 #vt100 .ansi0     { color:            #000000; }
 #vt100 .ansi1     { color:            #cd0000; }
 #vt100 .ansi2     { color:            #00cd00; }
@@ -506,6 +509,9 @@
 /* SYSTEM colors */
 #vt100 .bgAnsiDef { background-color: #ffffff; }
 
+#vt100 #scrollable.inverted .bgAnsiDef
+                  { background-color: #000000; }
+
 #vt100 .bgAnsi0   { background-color: #000000; }
 #vt100 .bgAnsi1   { background-color: #cd0000; }
 #vt100 .bgAnsi2   { background-color: #00cd00; }