diff --git a/styles/atom-runner.less b/styles/atom-runner.less
index 2a19633..d701b17 100644
--- a/styles/atom-runner.less
+++ b/styles/atom-runner.less
@@ -7,6 +7,7 @@
 .atom-runner {
   background: @base-background-color;
   padding: @component-padding;
+  -webkit-user-select: none;
 
   overflow-y: scroll;
   color: @text-color;
@@ -14,7 +15,9 @@
   pre {
     background-color: @input-background-color;
     padding: (@component-padding + 5);
-
+    .output {
+      -webkit-user-select: initial;
+    }
     .stderr { color: @text-color-error; }
   }