jetpack featured content "featured tag" shows :before css

i turned on Hide tag from displaying in post

the problem is when i have one tag and it is my featured tag it displays like this.

https://i.cloudup.com/dVIjY9oyYY.jpg

i have tag code like this

<span class=”post-tags”><?php
$before = ”;
$seperator = ‘ ‘; // blank instead of comma
$after = ”;

the_tags( $before, $seperator, $after );
?></span>

and i have some css using .post-tags:before

what should i do to take care of this, besides just showing the featured tag.

https://wordpress.org/plugins/jetpack/