This works:
<iframe src="http://www.myschedulingwebsite.com/" style="width:100%; height:100%;">
Setting the height and width to 100% fills the containing div.
NOTE: If you attempt to embed an iframe using a website that can only be displayed in a frame on the same origin as the page itself, the web inspector will throw the error below:
Refused to display 'https://www.google.com/' in a frame because it set 'X-Frame-Options' to 'SAMEORIGIN'.
With that said, www.google.com and several other site's embedded iframes will always be blank. I hope this helps someone.
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…