diff --git a/conntrackt/static/custom.css b/conntrackt/static/custom.css
--- a/conntrackt/static/custom.css
+++ b/conntrackt/static/custom.css
@@ -42,3 +42,7 @@ parent div instead). */
  * END (search suggestions)
  */
 
+/* Project diagram should have maximum width */
+#project_diagram {
+    width: 100%;
+}
\ No newline at end of file