diff --git a/src/layout/container.less b/src/layout/container.less
index 3c7115eb..a817c469 100644
--- a/src/layout/container.less
+++ b/src/layout/container.less
@@ -30,8 +30,8 @@
     }
   }
   &-md {
-    width: @md-width;
-    height: @md-height;
+    width: @md-width !important;
+    height: @md-height !important;
   }
   &-lg {
     transform: matrix(1, 0, 0, 1, 0, 0) !important;