Hi,
Sorry for my misunderstanding in the first I though you are using neighborhood theme, and answering for that lol, apologies.
For read more to be a button you can try this.
Open wp-content\themes\supreme\includes\page-builder\composer\lib\shortcodes\blog.php in line #242 you find a line like this..
$items .= '<div class="read-more-bar"><a class="read-more" href="'.$post_permalink.'">'.__("Read more", "swiftframework").'<i class="icon-chevron-right"></i></a>';
there simple add class=”read-more button” like this
$items .= '<div class="read-more-bar"><a class="read-more button" href="'.$post_permalink.'">'.__("Read more", "swiftframework").'<i class="icon-chevron-right"></i></a>';
2. If you want to change the font size, use this Custom CSS.
.read-more{
font-size: 20px;
}
change 20px to your desired size.
Let me know, what you got.
Thanks,
laranz.