Recent updates have cause the blog post title size to change, removed the left pink border and also add a border to the post.

To fix this find this section of CSS:

/*Blog styling*/

.ds-home-blog.et_pb_blog_grid .et_pb_post {
    padding: 20px;
    border: none !important;
    text-align: justify;
}

.ds-home-blog.et_pb_blog_grid h2 {
    font-size: 26px;
    margin-bottom: 10px;
    color: #52576d;
    border-left: 5px solid #f4d1d8;
    padding-left: 10px;
    text-align: left !important;
}

And replace it with this:

/*Blog styling*/

.ds-home-blog .et_pb_blog_grid .et_pb_post {  /*Updated 20/02/18*/
    padding: 20px;
    border: none !important;
    text-align: justify;
}

.ds-home-blog .et_pb_blog_grid h2 { /*Updated 20/02/18*/ 
    font-size: 26px;
    margin-bottom: 10px;
    color: #52576d;
    border-left: 5px solid #f4d1d8;
    padding-left: 10px;
    text-align: left !important;
}

It may look like there is no change to the code but there is one minor change that makes a big difference.

If you changed the colours of the theme to your own, you will need to update the colours in this replaced section of CSS.

Applies to V1.4, fixed in V1.5.