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.