Step 1 - Choose your guide from the list, click "Details" button:

Step 2 - Go to Installation > Widget in the left menu:

Step 3 - fill the form with your preferences e.g.
- colors
- shape
- website domain
- position
- text on the widget

Step 4 - Click "Save & Generate Code"

Step 5 - now click "Copy to clipboard" and use the code to install on your page, just before </body> section:

Watch the video how to set the widget for your website and install it