Hi all, I'm a new person in web development,
and I have this project that need me to do something exactly like below images using JS, PHP, MYSQL, CSS, HTML etc.,
which is the Red and Green are collapsible.
need help ASAP,
There are a couple of CSS tree-view libraries that achieve something close to what you're wanting there, such as this CSS flowchart
However, if you need it to be exactly like that image, then creating your own custom flowchart using the Canvas might be a more appropriate solution.