Diagram not working in chrome

i m working on a project in angular.
I want to render some diagram in respective divs but i get this message in the element inspector of chrome

That’s not a message – that’s just content fallback that is in the DOM.

the canvas is defaulting the height to 1 px i dont know why i have set the height of the div explicitly to 400px and still its doing that any idea to resolve that?

here is the css associated with the above shown classscss

Stop worrying about how GoJS implements what it does. Everything inside the DIV that you supply is controlled by GoJS. You should not modify anything inside that DIV.

Does the DIV that you styled to have a height of 400px have a height of 400px? If not, you’ll need to figure out why, because GoJS does not modify the width or height of that DIV.