How to display media in SLS in maximum width by changing the CSS stlye file

i found out the div class "html5Iframe" used in SLS width-max value is currently set to the value of 40rem.
see output



please consider editing your CSS style file, found on the URL https://static.learning.moe.edu.sg/theme/vle/theme.css?v=7.3.8.199
to set max width = 100% or cancel the parameter.
see proposed output


it is possible to display media with width =100%, see below,

immediately. hope you can make the changes soon.
CPDD and ETD officers has been asking me to look into this issue. I hope your find my solution simple to implement.
:)
This solution only works on your computer and just as an evidence that it is relative easy one line of code change.
But only the vendor can make that change for system wide impact for all SLS users. Let's see how long it takes for the vendor to implement the one line of code change.