Fixed/improved pre processing

app/src/main/java/eu/faircode/email/HtmlHelper.java

@@ -233,6 +233,9 @@ public class HtmlHelper {
                         }
                 }
 
+                if (sb.length() == 0)
+                    span.removeAttr("style");
+                else
                     span.attr("style", sb.toString());
             }
         }
@@ -255,10 +258,10 @@ public class HtmlHelper {
 
         // Pre formatted text
         for (Element pre : document.select("pre")) {
-            Element div = document.createElement("div");
+            Element div = document.createElement("font");
+            div.attr("face", "monospace");
 
-            for (TextNode tnode : pre.textNodes()) {
+            String[] lines = pre.wholeText().split("\\r?\\n");
-                String[] lines = tnode.getWholeText().split("\\r?\\n");
             for (String line : lines) {
                 line = Html.escapeHtml(line);
 
@@ -277,8 +280,6 @@ public class HtmlHelper {
                 span.html(sb.toString());
                 div.appendChild(span);
                 div.appendElement("br");
-                    Log.i("span html=" + span.html());
-                }
             }
 
             pre.replaceWith(div);