The End of Internet Explorer
Today marks a linchpin moment in web development, and especially front‑end development. Microsoft has formally retired their long‑standing, divisive browser.
Articles
Internet Explorer
Internet Explorer was Microsoft's web browser (now discontinued). It played a significant role in my formative front‑end years, usually by making ordinary browser work far more complicated than it needed to be. These articles remain as a record of that compatibility era, not as current browser guidance.
The End of Internet Explorer. 
Conditional HTML for Browsers Other than Internet Explorer. Conditional HTML for Browsers Other than Internet Explorer
Conditional comments were once the standard way to target Internet Explorer. This guide shows how the non‑IE pattern works and where it catches people out.
Best Practices for Cross‑Browser Compatibility. Best Practices for Cross‑Browser Compatibility
Cross‑browser compatibility ensures a consistent user experience across different browsers. Best practices, CSS, and JS techniques, and testing strategies.