Change Agent's CSS on webpage

Hi, could you please help me with an issue related to changing CSS styles on a website?
I copied the code snippet and pasted it into the HTML, and the generated agent appears in the bottom right corner, which is not the desired position. When I check in Chrome DevTools, I see that all styles are generated within the

<style>
...
</style>

element, but I can’t seem to override them. How can I get access to these styles to make changes?