diff --git a/app/views/shared/tiny_mce.rhtml b/app/views/shared/tiny_mce.rhtml
index 0d500e3..1d49ff4 100644
--- a/app/views/shared/tiny_mce.rhtml
+++ b/app/views/shared/tiny_mce.rhtml
@@ -22,6 +22,7 @@ tinyMCE.init({
         paste_insert_word_content_callback : "convertWord",
         paste_use_dialog: false,
         apply_source_formatting : true,
+        content_css: '/stylesheets/tinymce.css',
         language: <%= tinymce_language.inspect %>
         });
 
diff --git a/public/stylesheets/tinymce.css b/public/stylesheets/tinymce.css
new file mode 100644
index 0000000..e11f6dc
--- /dev/null
+++ b/public/stylesheets/tinymce.css
@@ -0,0 +1,6 @@
+body.mceContentBody,
+body.mceContentBody th,
+body.mceContentBody td {
+  font-size: 12px;
+}
+
--
libgit2 0.21.2