To fix W3C validation errors related to the noscript tag and the Facebook pixel code in the head tag of your Webflow website, follow these steps:
1. Open your Webflow project and go to the specific page where the error is occurring.
2. In the Designer, click on the Settings tab in the right sidebar.
3. In the Head section, locate the noscript tag containing the Facebook pixel code. The noscript tag is used for providing an alternative content for users who have disabled JavaScript in their browsers.
4. The most common W3C validation error related to the noscript tag is caused by using invalid HTML characters, such as angle brackets or ampersands, within the code. Make sure your Facebook pixel code is properly formatted and doesn't contain any invalid HTML characters.
5. If you are still seeing W3C validation errors related to the noscript tag, consider removing the tag altogether if it's not necessary for your website's functionality. Keep in mind that this may have an impact on the tracking capabilities of your Facebook pixel.
6. After making the necessary changes, click on the Publish button in the top-right corner to deploy the updates to your live website.
7. Once your website is live, run the W3C validator again to check if the errors have been resolved. You can use the W3C Markup Validation Service or other online validators to validate the code.
By fixing these issues, you are ensuring that your website complies with the W3C standards, which can improve browser compatibility and overall website performance. It's important to regularly validate your code to catch any errors and keep your website in optimal shape.