html web page production_html/css_WEB-ITnose

HTML

Can your friend help me make a webpage similar to the picture below?
It’s just a click to expand the content, the plus sign changes to a minus sign, then click the minus sign, the content is closed, and the minus sign changes to a plus sign again.
The background color of the word will change when the cursor moves up
and it will also change when you click on it. When you click on another line, the color of the previous click will be restored and the color of the new click will change
I don’t know if I can describe it clearly but Please help me find a similar URL
Please, please

Reply to the discussion (solution)

Look at Ztree, this It’s a specially made two-layer Tree
http://www.ztree.me/v3/demo.php#_105

A classmate who makes games

Look at Ztree, this is a specially made one Two-layer Tree
http://www.ztree.me/v3/demo.php#_105
Where is this code? I’m not very good at using it. I don’t understand. . .