Automatic height for render

Hello,
I have a page with text at top and a render a bottom. I have height : auto for text, i wish that render fit to the free part of the window but i cannot find the right parameters. Does someone have an idea please ?

Thank you

html example

You might want to use flexbox for this: https://jsfiddle.net/3v2fj33a/2/

1 Like

Thank you, i will try that asap.