diff --git a/app/assets/stylesheets/problems.css b/app/assets/stylesheets/problems.css
deleted file mode 100644
--- a/app/assets/stylesheets/problems.css
+++ /dev/null
@@ -1,14 +0,0 @@
-
-tr.available {
-    background: #c0ffc0;
-}
-
-tr.not-available {
-    background: #ffc0c0;
-}
-
-.import-log {
-    background: lightgray;
-    border: solid black 1px;
-    padding: 10px;
-}
\ No newline at end of file