diff --git a/docs/assets/css/styles.css b/docs/assets/css/styles.css
index a92224b..7ae44cc 100644
--- a/docs/assets/css/styles.css
+++ b/docs/assets/css/styles.css
@@ -199,8 +199,8 @@ pre {
 
 .sys-img {
   text-align: center;
-  margin: 30px 0;
-  width: 100%;
+  margin: 30px auto;
+  width: 70%;
   height: 400px;
   display: flex;
   justify-content: center;