Embed Scheduler to website, responsive code required

Dear Community, 

I have created a meetings page for upcoming event and handed over the html code to my teammates in the web team to embed the registration on a landing page. 

Unfortunately, I am receiving the feedback, that the html code is not including responsive code, something I was told comes out of the box in Calendly. 

Is this also supported in Scheduler? And if so, where is it to find or how should I change the existing code?

Many thanks!