diff --git a/workflow_service/static/css/monitor.css b/workflow_service/static/css/monitor.css
index c3c1514..335931f 100644
--- a/workflow_service/static/css/monitor.css
+++ b/workflow_service/static/css/monitor.css
@@ -297,6 +297,12 @@ body {
     background: #f0fff4;
     border-radius: 6px;
     border-left: 3px solid #27ae60;
+    white-space: pre-wrap;
+    word-wrap: break-word;
+    max-height: 300px;
+    overflow-y: auto;
+    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
+    line-height: 1.4;
 }
 
 .task-error {
@@ -307,6 +313,12 @@ body {
     background: #fff5f5;
     border-radius: 6px;
     border-left: 3px solid #e74c3c;
+    white-space: pre-wrap;
+    word-wrap: break-word;
+    max-height: 200px;
+    overflow-y: auto;
+    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
+    line-height: 1.4;
 }
 
 .error-message {