diff --git a/uebung1/css-selektoren.html b/uebung1/css-selektoren.html
index 6b1095f..42456b3 100644
--- a/uebung1/css-selektoren.html
+++ b/uebung1/css-selektoren.html
@@ -15,7 +15,7 @@
                 margin: 1em;
         }
         .monospace {
-                font: monospace;
+                font-family: monospace;
         }
 
         #first-div {