diff -r 4b780ebbedc6 -r 0e6703cd0968 client/src/components/SlateEditor/BlockButton.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/client/src/components/SlateEditor/BlockButton.js	Fri Nov 16 11:19:13 2018 +0100
@@ -0,0 +1,8 @@
+import React from 'react';
+import { withNamespaces } from 'react-i18next';
+
+export default withNamespaces("")(({icon, isActive, onMouseDown, t}) => (
+  <span className={"button sticky-top" + ((!isActive)?" text-primary":" text-dark")} onMouseDown={onMouseDown} data-active={isActive} title={t("common."+icon)} >
+    <span className="material-icons">{icon}</span>
+  </span>
+));