diff --git a/_includes/styles/base.scss b/_includes/styles/base.scss
index e18d9b6..7255603 100644
--- a/_includes/styles/base.scss
+++ b/_includes/styles/base.scss
@@ -199,6 +199,7 @@ table {
 img.icon {
   width: 1em;
   height: 1em;
+  user-select: none;
 }
 
 .tag-list {