correction bug langtitle

templates/coloriser.html

@@ -48,7 +48,7 @@
             <!-- <div id="ti_btnkana" onclick="">
                 <img src="{% static 'im/btn-kana.png' %}" class="btnzi">
             </div> -->
-            <div id="ti_btnwordspace" onclick="togglewordspace()">
+            <div id="ti_btnwordspace" class="langtitle" onclick="togglewordspace()">
                 <img id="imgzhtokenspace" src="{% static 'im/zhtokenspaceblack.png' %}" class="btnzi">
             </div>