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src/components/temp/operation.vue

@@ -193,13 +193,15 @@
   .ladder-list{
     flex: 1;
     min-width: 460px;
-    /* max-width: 450px; */
     display: flex;
     flex-direction: column;
     justify-content: space-between;
     margin-right: 40px;
     margin-bottom: 10px;
   }
+  .ladder-list:nth-child(3n){
+    margin-right: 0;
+  }
   .ladder-list:last-child{
     margin-right: 0;
   }