How can I zoom in the bpmn model that I have embedded in an HTML page?

Hello there,

I have embedded a BPMN model that I created in cawemo within an HTML page.

However, I want when the page is loaded, to have a closer look at the model, namely to apply a predefined zoom

How, can I do this?

For example, this is the line of code:
<iframe src="" style="width:100%;height:800px;border:1px solid #ccc" allowfullscreen></iframe>

Thank you.