How do I move the position of my bot on my website?

There are various ways in which you can move the position of your bot. You can use the widget-positioning parameter. But if you want to have a custom configuration, then you can do that via CSS. 

To do so, you can use the following lines of code:

<style>
.xdk-iframe{
    margin-bottom: 15%;
}
</style>

This will ensure the entire SDK moves, including the bot prompts. The margin-bottom is not that important here but when choosing a class, you should select .xdk-iframe in order to customize the position for the Web SDK.