Hi,

1. Please add the css to style.css

.isotope-item.container3d:not(.standard-list-item) > .inside  > a { display:block;position: relative; }
.isotope-item.container3d:not(.standard-list-item) > .inside  > a:before {content:'';position: absolute;top:0;left:0;width:100%;height:100%;opacity: 0; background-color: #333; }
.isotope-item.container3d:not(.standard-list-item) > .inside  > a:hover:before {opacity: .4;}

2. find ../functions/pagebuilder/modules/latest-post.php, try to add the code here(https://www.dropbox.com/s/h98vhy13xgsw0c3/QQ20150718-1.jpg?dl=0):
<a href="<?php the_permalink(); ?>" title="<?php the_title(); ?>" class="latest-more">Read More</a>

Cheers!
Bwsm – uiueux.com