diff --git a/conjugation/drill.css b/conjugation/drill.css
index 765dd78..24269ed 100644
--- a/conjugation/drill.css
+++ b/conjugation/drill.css
@@ -266,4 +266,13 @@ dl.questionOptions dd {
 #quizSection span.first,
 #scoreSection span.first {
   text-transform: capitalize;
+}
+
+ruby.furiganaHover rt, ruby.furiganaHover rp {
+  opacity: 0;
+  transition: opacity 0.2s;
+}
+
+ruby.furiganaHover:hover rt, ruby.furiganaHover:hover rp {
+  opacity: 100;
 }
\ No newline at end of file
diff --git a/conjugation/drill.js b/conjugation/drill.js
index ec05345..10af5cb 100755
--- a/conjugation/drill.js
+++ b/conjugation/drill.js
@@ -130,7 +130,7 @@ function wordWithFurigana(words) {
       } else if (options["furigana_always"]) {
         bits[0] = bits[0] + "<ruby>" + bits[1] + "<rp>(</rp><rt>" + bits[2] + "</rt><rp>)</rp></ruby>" + bits[3];
       } else {
-        bits[0] = bits[0] + bits[1] + bits[3];
+        bits[0] = bits[0] + "<ruby class='furiganaHover'>" + bits[1] + "<rp>(</rp><rt>" + bits[2] + "</rt><rp>)</rp></ruby>" + bits[3];
       }
       bits.splice(1, 3);
     }