How to add elements to an html page_html/css_WEB-ITnose

Without changing any element of an html page, how can I add a tag externally to the page table? Please give me some advice! ! !

Reply to the discussion (solution)

Change the external js introduced by html and use js to operate

Use js to add: $("# id").html("");

Change the external js introduced by html and use js to operate

html1 page cannot be added Any code can only be inserted externally. Can you give a small example?

Add with js: $("#id").html("");

But how to load js? Write another page?

What I mean is that html1 cannot have any changes. Write an html page externally, get the table first, and then insert a element

Add with js: $("#id").html("");

But how to load js? Write another page?

The first step: you write another js file and write the method in the file;
The second step: introduce this js file into html and call the js method when the page is loaded

Add with js: $("#id").html("");

But how to load js? Write another page?

The first step: you write another js file and write the method in the file;
The second step: introduce this js file into html and call the js method when the page is loaded This still requires changing the html page. . .

It does not affect the html layout. If you want to say that nothing is added to the html and the js method is not quoted, then I don’t think anyone can do this.

The poster is facing a problem Please state your initial needs instead of asking questions according to your ideas. Such questions will not get a good solution.

Use JavaScript DOM to add HTML elements, the premise is to add js in HTML:

There is something wrong with your design . You should change your way of thinking. Put your needs out and let everyone give you ideas

Write a page outside, use iframe to nest the original page, and use js to operate the sub-page.