This one  is simple.  Just copy and paste the following CSS into the Custom CSS box.

*NOTE This will also work if you are using the Filterable Blog Posts Plugin here (which we hiiiighly recommend!)

/****** Corner shadows on Blog Grid Posts *******/

.et_pb_blog_grid .et_pb_post::before, .filterable-blogposts .et_pb_post::before {
    content: "";
    position: absolute;
    height: 30px;
    width: 95%;
    top: 96%;
    z-index: -1;
    opacity: 0.15;
    filter: blur(3px);
    transition: all 0.5s ease;
    -webkit-transition: all 0.5s ease;
    -moz-transition: all 0.5s ease;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 64 64' preserveAspectRatio='none' width='100%' height='40' fill='%23000000'%3E%3Cpath d='M0 64 C15 30 40 20 64 64 L62 0 L2 0 Z' /%3E%3C/svg%3E");
    background-position:bottom center !important;
    background-repeat:no-repeat !important;
    transform: translateX(-50%);
    left:50%;
 -webkit-animation: fadein 2s; /* Safari, Chrome and Opera > 12.1 */
       -moz-animation: fadein 2s; /* Firefox < 16 */
        -ms-animation: fadein 2s; /* Internet Explorer */
         -o-animation: fadein 2s; /* Opera < 12.1 */
            animation: fadein 2s;
}

.et_pb_blog_grid .et_pb_post::after, .filterable-blogposts .et_pb_post::after {
    position: absolute;
    content: "";
    bottom: 0px;
    left: 0px;
    width: 100%;
    height: 40px;
    z-index: 1;
    visibility: visible;
    background: inherit;
}

.et_pb_blog_grid .et_pb_post, .filterable-blogposts .et_pb_post {
    position: relative;
    transition: all ease-out 0.5s;
}

.et_pb_blog_grid .et_pb_post:hover, .filterable-blogposts .et_pb_post:hover {
    transform: scale(1.01);
}

.et_pb_blog_grid .et_pb_post:hover::before, .filterable-blogposts .et_pb_post:hover::before {
height:35px;
    top:96%;
    background-position:bottom center !important;
}

@keyframes fadein {
    from { opacity: 0; }
    to   { opacity: 0.15; }
}

/* Firefox < 16 */
@-moz-keyframes fadein {
    from { opacity: 0; }
    to   { opacity: 0.15; }
}

/* Safari, Chrome and Opera > 12.1 */
@-webkit-keyframes fadein {
    from { opacity: 0; }
    to   { opacity: 0.15; }
}

/* Internet Explorer */
@-ms-keyframes fadein {
    from { opacity: 0; }
    to   { opacity: 0.15; }
}

/* Opera < 12.1 */
@-o-keyframes fadein {
    from { opacity: 0; }
    to   { opacity: 0.15; }
}

Done! Go back and refresh your blog page and you will see the gorgeousness!

Give this page a share, like, or comment if this worked for you! Leave a comment if you have a question or want to share some love 😀