diff --git a/kjvstudy_org/templates/chapter.html b/kjvstudy_org/templates/chapter.html
index 8f2c073..a0f1bc8 100644
--- a/kjvstudy_org/templates/chapter.html
+++ b/kjvstudy_org/templates/chapter.html
@@ -48,6 +48,16 @@
     transition: all 0.3s ease;
     position: relative;
     user-select: none;
+    -webkit-user-select: none;
+    -moz-user-select: none;
+    -ms-user-select: none;
+}
+
+.sidenote::selection,
+.marginnote::selection,
+.sidenote *::selection,
+.marginnote *::selection {
+    background: transparent;
 }
 
 label.sidenote-number {