How to use read_more class for links within additional content box?


in OJS 3.1, I am using the “additional content” box for the index page and I want to style a link within this box like the “Read More” links in the Announcements and Current Contents parts of this page. They use a class called “read_more”. How can I use this class within the additional content box? Simply using the same syntax

<a class="read_more" href="http://ojs3.mywebsite/myjournal/issue/current"> Read More Current Articles </a>

does not work. Specifically, I want to add a link to the Current Issue, much like it is in the default ‘Current_Content’ part of the index page. Would I have to do this via the css-upload?