fix indentation style for nested lists

Change-Id: Id4e1aa6f4dacf0984cfc891081799be887543453
diff --git a/tools/droiddoc/templates-sdk/assets/css/default.css b/tools/droiddoc/templates-sdk/assets/css/default.css
index 916b1f8..6753c69 100644
--- a/tools/droiddoc/templates-sdk/assets/css/default.css
+++ b/tools/droiddoc/templates-sdk/assets/css/default.css
@@ -1094,7 +1094,7 @@
 dd ul,
 dd ol,
 dd dl {
-  margin:10px 0 0;
+  margin-top:10px;
 }
 li p,
 li pre,