Merge pull request #535 from gvwilson/rewriting-shell-lesson-using-nelle
[rnaseq-cwl-training.git] / lesson.css
index 64ee9523c417f07570531e91fd9d1e63848013a6..9d2888068723cb45f00ed217f989ebbfbf1b7f50 100644 (file)
@@ -70,7 +70,9 @@ div.box {
 
 /* Challenge questions. */
 div.challenge {
-    background-color: lightblue;
+    border-style: solid;
+    border-width: thin;
+    border-color: gray;
 }
 
 /* Key points in summary. */