Mermaid viewer: Make buttons opaque

diff --git a/content/mermaid-viewer/public/mermaid-viewer.css b/content/mermaid-viewer/public/mermaid-viewer.css
index 1838c186783cc361ae2b286bb5656cb8e460b232..56697cc805f33f365e3863bf24f086325de28ae1 100644 (file)
--- a/content/mermaid-viewer/public/mermaid-viewer.css
+++ b/content/mermaid-viewer/public/mermaid-viewer.css
@@ -66,6 +66,7 @@
 }
 
 .mermaid-viewer-button-base {
+    background: #FEFEFE;
     border: 1px solid #C0C0C0;
     border-radius: 6px;
     cursor: pointer;