diff --git a/client/src/components/layouts/global.css b/client/src/components/layouts/global.css
index d4d8970b76..a87f7a9f42 100644
--- a/client/src/components/layouts/global.css
+++ b/client/src/components/layouts/global.css
@@ -122,13 +122,21 @@ a:focus {
   color: var(--secondary-color);
 }
 
-.fcc-modal .close {
-  color: var(--secondary-color);
-  opacity: 100%;
+button.close {
+  color: inherit;
+  background-color: transparent;
   font-size: 28px;
+  opacity: 0.5;
   text-shadow: none;
 }
 
+button.close:hover,
+button.close:focus {
+  color: inherit;
+  opacity: 1;
+  background-color: transparent;
+}
+
 .modal-content {
   background-color: var(--secondary-background);
   border-radius: 0px;
diff --git a/client/src/pages/certification.css b/client/src/pages/certification.css
index 351fcb3b98..53e60a5aff 100644
--- a/client/src/pages/certification.css
+++ b/client/src/pages/certification.css
@@ -78,7 +78,11 @@
   font-size: 20px;
   text-align: right;
   margin-right: 100px;
-  color: #fff;
+  color: var(--gray-00);
+}
+
+.certification-namespace .issue-date strong {
+  color: var(--gray-00);
 }
 
 .certification-namespace .information {