Fix style for language switch buttons

static/style.css

@@ -62,19 +62,14 @@ nav > :nth-child(1) > img {
   cursor: pointer;
   border: initial;
   height: 30px;
+  background-color: inherit;
+  color: inherit;
 }
 
 html[lang="en"] #enButton,
 html[lang="fr"] #frButton {
-  font-weight: bold;
-  color: black;
-  background-color: inherit;
-}
-
-html[lang="en"] #frButton,
-html[lang="fr"] #enButton {
-  background-color: #497ed5;
-  color: white;
+  font-weight: bolder;
+  cursor: default;
 }
 
 @media (min-width: 992px) {