The "+share" button disappear
I posted the code from AddThis on my site:
<!-- AddThis Button BEGIN -->
<div class="addthis_toolbox addthis_default_style ">
<a class="addthis_button_facebook_like" fb:like:layout="button_count"></a>
<a class="addthis_button_tweet"></a>
<a class="addthis_button_google_plusone" g:plusone:size="medium"></a>
<a class="addthis_counter addthis_pill_style"></a>
</div>
<script type="text/javascript" src="http://s7.addthis.com/js/250/addthis_widget.js#pubid=xa-4fb3e6102dbaa5d5"></script>
<!-- AddThis Button END -->
Everything shows up correctly, but the last orange button from disappeared. I check the code using a Web Developer tool and find there is a "display:none" added to the style automatically. I check other of my site that used the same addthis code, but the last button does appear. Why is this happening?