Revert "tweak blacklist css"

This reverts commit 2602ee7ae7.

app/assets/stylesheets/specific/posts.css.scss

@@ -56,7 +56,7 @@ a.blacklisted-active {
   text-decoration: line-through;
 }
 
-.post-preview.blacklisted-active {
+.post-preview.blacklisted-active, #image-container.blacklisted-active {
   img {
     display: none;
   }
@@ -64,7 +64,7 @@ a.blacklisted-active {
     display: none;
   }
 
-  background-color: #DDD;
+  background-color: black;
 
   &:after {
     position: absolute;
@@ -77,22 +77,12 @@ a.blacklisted-active {
   }
 }
 
-#image-container.blacklisted-active {
-  img {
-    visibility: hidden;
-  }
-  &:before {
-    visibility: hidden;
-  }
-
-  background-color: #DDD;
-}
-
 .post-preview {
   img {
     border: 2px solid transparent;
   }
 
+
   &.post-status-has-children img {
     border-color: $preview_has_children_color;
   }