I have logged into your website and this is the text area and doesn’t support the HTML content and it seems that you are adding the "." with the text. And this is the default behavior it displays the content inside the width of the container of the hotspot item that’s why the "." is coming with the first line.
You can try adding more text with the first line then check back.
Sorry but there is no option because the field doesn’t support HTML content you can try adding some text with the first line then clear cache and check back.