Streaming live at 10am (PST)

Webflow error for beginner

Hi Webflow friends,
When I followed the steps of “getting started” file, my screen is gray and I couldn’t adjust anything. (in common tutorial on internet, it should be white background and can see the layout as well as heading, text…)
Are there anybody having same problems, I really want to start to build my own website on Webflow
Hope to receive the advices
Thanks so much