diff --git a/index.html b/index.html
index 92e8032..854732b 100644
--- a/index.html
+++ b/index.html
@@ -205,13 +205,10 @@
     .btn-learn,
     .btn-learn:visited {
       background-color: #6EBEE1;
-      color: #ffffff;
+      color: #000;
     }
     .btn-learn img {
-      filter: brightness(0) invert(1);
-    }
-    .btn-learn::after {
-      filter: invert(1) !important;
+      filter: brightness(1);
     }
     .btn-meshcore img {
       filter: brightness(0) invert(1);