diff --git a/src/plugins/bookPlayer/style.scss b/src/plugins/bookPlayer/style.scss
index db43730188..90d928c867 100644
--- a/src/plugins/bookPlayer/style.scss
+++ b/src/plugins/bookPlayer/style.scss
@@ -22,12 +22,12 @@
 
     #btnBookplayerToc {
         float: left;
-        margin-left: 2vw;
+        margin: 0.5vh 0.5vh 0.5vh 2vw;
     }
 
     #btnBookplayerExit {
         float: right;
-        margin-right: 2vw;
+        margin: 0.5vh 2vw 0.5vh 0.5vh;
     }
 
     .bookplayerErrorMsg {
@@ -80,3 +80,10 @@
         }
     }
 }
+
+@media (max-width: 60em) {
+    #dialogToc {
+        max-width: 100%;
+        max-height: 100%;
+    }
+}