diff --git a/src/pages/Tool/Gen/style.less b/src/pages/Tool/Gen/style.less
new file mode 100644
index 0000000..6999d7a
--- /dev/null
+++ b/src/pages/Tool/Gen/style.less
@@ -0,0 +1,4 @@
+.steps:global(.ant-steps) {
+  max-width: 750px;
+  margin: 16px auto;
+}