diff --git a/httprunner/templates/default_report_template.html b/httprunner/templates/default_report_template.html
index fef8610e..821f361b 100644
--- a/httprunner/templates/default_report_template.html
+++ b/httprunner/templates/default_report_template.html
@@ -11,6 +11,7 @@
     }
     #summary, #details {
       width: 960px;
+      margin-bottom: 20px;
     }
     #summary th {
       background-color: skyblue;