first commit

src/common/ui/KintonePluginAlert.tsx

@@ -0,0 +1,18 @@
+import React from 'react';
+
+import clsx from 'clsx';
+
+interface KintonePluginAlertProps {
+  className?: string;
+  children: React.ReactNode;
+}
+
+const KintonePluginAlert: React.FC<KintonePluginAlertProps> = (props) => {
+  const { className, children } = props;
+  return (
+    <div className={clsx('kintoneplugin-alert', className)} role="alert">
+      {children}
+    </div>
+  );
+};
+export default KintonePluginAlert;