chagne the background on Mobile device

Hi,
storyline suggest that you can do responsive.
I ve got a course, the background is WHITE.
When i watch the html5 product, i can see 2 big ine, in BLACK, on the bottom and on the top.
How can i change that color? i already try to chnage the background color on storyline, and on CSS on my story_html5.html

but it is not working at all

1 Reply
Alyssa Gomez

Hello Maxime! First thing we'll want to check is that you're viewing your published content on a supported browser, listed here. Are you able to share a screenshot of what you're seeing on your end? And if you don't mind sharing your file, we can help you with testing, as well. Just use the Add Attachment button at the bottom of the reply window.