diff --git a/src/app/shared/nodes/container-node/container-node.css b/src/app/shared/nodes/container-node/container-node.css
index 5d3320c..a71652d 100644
--- a/src/app/shared/nodes/container-node/container-node.css
+++ b/src/app/shared/nodes/container-node/container-node.css
@@ -444,13 +444,14 @@
   position: relative;
   flex: 0 0 0;
   width: 0;
-  left: -18px;
+  /* Keep the connection handle flush with the card instead of floating outside it. */
+  left: -12px;
   z-index: 20;
 }
 
 .container-node__socket--right {
   left: auto;
-  right: -18px;
+  right: -12px;
 }
 
 .container-node__port-label {