diff -u b/core/themes/seven/css/components/entity-meta.css b/core/themes/seven/css/components/entity-meta.css
--- b/core/themes/seven/css/components/entity-meta.css
+++ b/core/themes/seven/css/components/entity-meta.css
@@ -32,6 +32,9 @@
   border-top: 1px solid #fff;
   margin: 0;
 }
+.entity-meta details:first-child {
+  border-top-color: #bfbfbf;
+}
 .entity-meta details[open] {
   background-color: transparent;
   background-image: -webkit-linear-gradient(top, rgba(0, 0, 0, .125), transparent 4px);