diff --git a/app/src/main/java/eu/faircode/email/HtmlHelper.java b/app/src/main/java/eu/faircode/email/HtmlHelper.java
index 5dc463923f..dd94ec6647 100644
--- a/app/src/main/java/eu/faircode/email/HtmlHelper.java
+++ b/app/src/main/java/eu/faircode/email/HtmlHelper.java
@@ -772,6 +772,7 @@ public class HtmlHelper {
                 .replace("null", "")
                 .replace("none", "")
                 .replace("unset", "")
+                .replace("auto", "")
                 .replace("inherit", "")
                 .replace("initial", "")
                 .replace("windowtext", "")