Unlock the Secrets of a Custom Sign-In Page with Tailwind and JavaScript

Summary

This tutorial shows how to customize an Okta-hosted sign-in page for a fictional to-do application while retaining the Okta Identity Engine and Sign-In Widget (SIW). It starts with a custom domain and brand configuration, then uses the page code editor, SIW design tokens, custom text, Tailwind CSS via CDN, and external JavaScript behavior to create a responsive layout, branded footer, and terms-and-conditions modal. The modal uses Alpine.js transitions and a MutationObserver watching the authentication container so it appears after SIW elements render; Google Fonts also require CSP allowlist entries for googleapis.com and gstatic.com. The post notes that browser manipulation can bypass the modal, recommends accessibility testing after customization, and describes connecting the brand to an Okta React sample through an OIDC custom issuer URL.

Takeaways

1. 1

   The SIW can be styled with design tokens, including color, typography, border radius, focus outline, and danger-control settings; its primary authentication title is also customized through config.i18n.

2. 2

   The terms-and-conditions modal is initially hidden, uses Alpine.js transitions, and is opened after a MutationObserver detects SIW elements in the authentication container.

3. 3

   The modal is not foolproof because users can manipulate page elements in browser developer tools; the post also advises accessibility testing after making customizations.