How can I upload a Dropbox video and set it as the background on my webpage using Webflow? My browser is Safari 9, and I have been struggling with the code.

To upload a Dropbox video and set it as the background on your webpage using Webflow, you'll need to follow a few steps. However, please note that the steps may differ slightly depending on the version of Webflow you're using.

1. First, make sure your video file is compatible with Webflow's supported video formats. Webflow currently supports .mp4, .webm, and .ogv video formats. If your video is in a different format, you might need to convert it to one of these formats using a video conversion tool.

2. Upload your video file to Dropbox. You can do this by logging into your Dropbox account, creating a new folder, and uploading the video file into that folder.

3. Get the direct link to your video file. To do this, right-click on the video file in Dropbox, select "Share," and then click on "Create a link." After generating the link, make sure it's a direct link to the file itself and not a Dropbox page.

4. Now, open your Webflow project and navigate to the page where you want to set the video as the background.

5. Add a new Div Block element to the page. You can do this by clicking on the "+" icon in the Webflow Designer and selecting the "Div Block" element.

6. With the Div Block selected, go to the Style panel on the right-hand side of the Designer. Scroll down to the "Background" section.

7. Click on the background image field and select the "Choose Image" button. In the modal that appears, paste the direct link to your Dropbox video in the URL field and click "Apply."

8. The video should now appear as the background of the Div Block. Adjust the size and position of the Div Block as needed to fit your webpage layout.

9. Preview your page in Webflow to see how the video background looks. You can use the preview mode or publish the project to a temporary staging URL.

Note: It's essential to understand that not all browsers support auto-playing video backgrounds due to certain autoplay policies. Safari 9, in particular, may not support autoplaying videos. Therefore, it's recommended to provide alternative content or fallback images to ensure the best user experience across different browsers and devices.