diff --git a/modeler/src/style.css b/modeler/src/style.css
index 26846de8..66ce0185 100644
--- a/modeler/src/style.css
+++ b/modeler/src/style.css
@@ -38,22 +38,22 @@ a:link {
   display: table-cell;
 }
 
-.content .error .details {
+.content > .error .details {
   max-width: 500px;
   font-size: 12px;
   margin: 20px auto;
   text-align: left;
 }
 
-.content .error pre {
+.content > .error pre {
   border: solid 1px #CCC;
   background: #EEE;
   padding: 10px;
 }
 
-.content:not(.with-error) .error,
-.content.with-error .intro,
-.content.with-diagram .intro {
+.content:not(.with-error) > .error,
+.content.with-error > .intro,
+.content.with-diagram > .intro {
   display: none;
 }