diff --git a/index.bs b/index.bs
index 55ab9b9a..f5b6316a 100644
--- a/index.bs
+++ b/index.bs
@@ -116,7 +116,6 @@ summary {
 
 div.algorithm-steps {
     padding: .5em;
-    background-color: ghostwhite;
 }
 
 .algorithm-steps {
@@ -142,7 +141,6 @@ div.informalsteps {
     padding: .5em;
     border: thin solid #88e !important;
     border-radius: .5em;
-    background-color: ghostwhite;
 }
 
 .informalsteps {
@@ -167,7 +165,6 @@ div.internal-slots {
     padding: .5em;
     border: thin solid #88e !important;
     border-radius: .5em;
-    background-color: aliceblue;
 }
 
 .internal-slots {