How can I add a CSS function recommended by Google Pagespeed Insights in Webflow using custom code?

To add a CSS function recommended by Google Pagespeed Insights in Webflow using custom code, follow these steps:

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1. Identify the CSS function: In Google Pagespeed Insights, locate the specific CSS function that is recommended to improve your website's speed and performance. Note down the function name and any additional details provided.

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2. Access Webflow Designer: Log in to your Webflow account and navigate to the project where you want to add the custom CSS code.

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3. Collection or page level custom code: Determine whether you want to apply the CSS function globally across your entire site or target specific pages or elements. Depending on your preference, you can either add the custom code to the project-level custom code or individual page or collection settings.

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4. Project-level custom code: To apply the CSS function globally, go to your project settings by clicking the gear icon in the left sidebar. Select the "Custom code" tab, and scroll down to the "Head Code" or "Footer Code" section. Here, you can add the CSS function using `<style>` tags followed by your custom CSS code.

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   For example:

   ```html

   <style>

      /* CSS function code */

   </style>

   ```

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5. Page or collection level custom code: To apply the CSS function to specific pages or collections, open the page or collection within the Webflow Designer. In the top-right corner of the Designer, click the "Page Settings" or "Collection Settings" icon. In the settings panel, select the "Custom code" tab and input your CSS function in the "Head Code" or "Footer Code" section.

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6. Insert the CSS function: Insert the CSS function you want to add within the `<style>` tags. Make sure to follow the function syntax and any specific guidelines stated by Google Pagespeed Insights.

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7. Publish changes: After adding the custom CSS code with the recommended function, click the "Publish" button in the top-right corner of the Webflow Designer to make your changes live.

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8. Test and verify: Visit your website and use Google Pagespeed Insights or other performance testing tools to ensure that the CSS function has been applied correctly and has positively impacted your website's speed and performance.

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Remember to thoroughly test your website after adding the CSS function to ensure it doesn't break any existing styles or functionalities. Additionally, keep in mind that adding custom code in Webflow may have limitations or conflicts with the platform's native functionality, so proceed with caution and make backups if necessary.