diff --git a/website/public/css/tasks.styl b/website/public/css/tasks.styl
index bffce715a5..941be536ee 100644
--- a/website/public/css/tasks.styl
+++ b/website/public/css/tasks.styl
@@ -277,10 +277,13 @@ for $stage in $stages
     text-decoration: none
 
 // checkbox
-.task-checker input[type=checkbox]
+.task-checker input[type=checkbox], .task-checker input[type=checkbox]:focus
+  position: absolute
   margin: 0
   padding: 0
-  visibility: hidden
+  height: 10px
+  opacity: 0
+  width: 10px
 
 .task-checker label
   display: inline-block