Ensuring cross-browser compatibility is crucial for delivering a seamless user experience across various platforms. Here are the top 10 tips you can implement to achieve this:

1. Use Standard HTML/CSS: Stick to web standards prescribed by W3C to maximize compatibility.
2. Test on Multiple Browsers: Regularly test your site on major browsers like Chrome, Firefox, Safari, and Edge.
3. Utilize CSS Resets: Consider using a CSS reset to eliminate browser inconsistencies in default styling.
4. Embrace Responsive Design: Use flexible layouts and media queries for designs that adapt to different screen sizes.
5. Feature Detection: Employ tools like Modernizr to detect features instead of browser capabilities.

In addition to the aforementioned tips, you should also focus on the following strategies:

6. Keep JavaScript Simple: Limit the use of complex scripts and ensure they degrade gracefully on unsupported browsers.
7. Regular Updates: Keep your browser and development tools updated to leverage the latest improvements and bug fixes.
8. Check for Console Errors: Use developer tools to identify and correct JavaScript errors that may affect performance.
9. Use Fallbacks: Provide fallbacks for CSS properties and JavaScript features not supported in older browsers.
10. Stay Informed: Follow web development trends to keep abreast of potential cross-browser issues that may arise.

Understanding CSS quirks is essential for web developers, as different browsers can render styles in unique ways. For example, what looks perfect in Chrome might appear broken in Internet Explorer. This discrepancy arises due to each browser having its own rendering engine, which interprets CSS rules according to various specifications. Developers must be aware of these differences to avoid situations where their carefully crafted styles do not perform as expected across platforms.

To manage these variations, the following strategies can be implemented:

1. Use CSS resets to create a consistent baseline for styles across browsers.
2. Utilize vendor prefixes when necessary to ensure compatibility with different rendering engines.
3. Test on multiple browsers regularly to identify issues early and address them promptly.

In today's digital landscape, ensuring your website is ready for browsers is essential for providing a smooth user experience. Common compatibility issues can arise from differences in how various browsers interpret HTML, CSS, and JavaScript. For instance, features that work perfectly in Google Chrome may not display correctly in Firefox or Safari. To avoid these discrepancies, it's crucial to test your website across multiple browsers. Some common issues include:

• CSS styling inconsistencies
• JavaScript functionality failures
• HTML rendering errors

Fixing these compatibility issues often involves a few straightforward strategies. Start by using validated HTML and CSS to ensure your code adheres to web standards. Consider using feature detection libraries like Modernizr, which can help gracefully handle inconsistencies in browsers. Additionally, employing responsive design principles and thorough browser testing will enhance accessibility. Always remember to keep your browser versions up to date to minimize other potential conflicts, and leverage tools like BrowserStack to easily check how your website performs across different platforms.