diff --git a/public/css/icinga/base.less b/public/css/icinga/base.less
index 317cc4592..95907a318 100644
--- a/public/css/icinga/base.less
+++ b/public/css/icinga/base.less
@@ -88,7 +88,11 @@ p {
 pre {
   background-color: @gray-lightest;
   font-family: @font-family-fixed;
+  font-size: @font-size-small;
+  line-height: 1.5;
+  margin: @vertical-padding 0 @vertical-padding / 2;
   padding: @vertical-padding @horizontal-padding;
+  white-space: pre-wrap;
 }
 
 table {