I am having a page where I have a navigation on the left hand side and an image gallery that displays images in a grid format. The Image grid has a flex equal to 7.

I need to find the flex width or the width of the page on the right hand side. SO that I need to fill this entire width with the images.

Please help me in finding the width of the flex. (eg. if flex = 7, what is the flexwidth/width?)

Appreciate your reply.