Pipeline graph node was one pixel off

app/assets/stylesheets/pages/pipelines.scss

@@ -547,7 +547,7 @@
         content: '';
         position: absolute;
         top: 48%;
-        right: -49px;
+        right: -48px;
         border-top: 2px solid $border-color;
         width: 48px;
         height: 1px;