Display data in list of checkboxs with accordion

I have a task related to HTMl ,CSS , Bootstrap and JavaScript / Jquery. I want to make this task support all the browsers. Description: Need to display list of items on tree view based on the parent and child nodes. Every parent has child, every child has sub child’s and sublevels also. Step 1: • Need to display data in HTML page using JavaScript. • Need to read the data on json or JS files. • If there is any sublevel need to display the parent node in Accordion. • Display checkbox before every node. Step:2 • If user clicks on check box the data should be display on textbox or textarea. • User can select multiple options based on search or without search. • The selected values should be displayed on textarea with comma separator. • If user unselect the option the corresponding option should removed from the text area. • The Scroll bar will come only for list data. • The textarea should be fixed bottom of the page. • If the user clicks on the copy button the text in textarea should be copied to clipboard we can copy that on other files. • If user clicks on expand all the data should be expand and collapse based on clicks. Please find the attachment for detailed document.