diff --git a/observations/templates/observations/index.html b/observations/templates/observations/index.html
index 541dd77120fe67c079f94541be777417972ba73f..bfbce1a687e5b71bce2327164f99ba4133f6572d 100644
--- a/observations/templates/observations/index.html
+++ b/observations/templates/observations/index.html
@@ -91,7 +91,7 @@
     }
     #dayInPeriod{
         display: inline;
-        width: 80%;
+        width: auto;
     }
     #legend{
         position: absolute;