How to Use iframe labels that comply with W3C Web page standards

The website wants to be revised. There is an advertisement problem. In the past, every time I put an advertisement, I had to update all the articles on the site. This is inconvenient and bad! I have changed some of the previously recommended articles on the website to the ones I have already recommended! It also wastes my time. So I want to use Iframe for implementation, but using iframe directly does not comply with the standard, so how can I use it to comply with W3C standards?

Direct use of "IFRAME" does not comply with "W3C Web page standards"

Use JS to standardize iframe.

1. Create a JS file with the following code:

Copy codeThe Code is as follows:
Function ifr (url, w, h) {document. write ('<iframe id = "ifr" name = "ifr" width = "' + w + '" height = "' + h + '" border = "0" frameborder = "0" scrolling = "no" src = "'+ url +'"> </iframe> ');}

Save as "ifr. js"

2. insert code into the webpage

Copy codeThe Code is as follows:
<Script type = "text/javascript" src = "ifr. js"> </script>

3. insert Code where iframe is needed

Copy codeThe Code is as follows:
<Script type = "text/javascript"> ifr ('HTTP: // www.cwdn.org/', '778', '120'); </script>

Function ifr () Instructions for use: ifr ('write address here ', 'Write width here', 'Write length here ',)