update rack view code

resources/assets/sass/rack.scss

@@ -7,7 +7,7 @@ div.rack-container {
 
 div.rack {
     position: relative;
-    display: inline;
+    display: inline-block;
     width: 300px; 
     border: 1px solid rgba(0, 0, 0, 0.1);
 }