如何以编程方式删除 <H1> 〜 <H6> 标签？

Question

I'm currently Working on a OSX Application, which uses a editable WebView.
I use a

[webView stringByEvaluatingJavaScriptFromString:@"document.execCommand(\"FormatBlock\", false, \"<H1>\")"];

command to give the selected paragraph(or the paragraph where the cursor is located) a H1 tag.
Is there a way to remove the < H1 >~< H6 > (And if possible < Blockquote >) tags?
Even better, Is there a way to change the tags into a < div > tag instead?

Answer 1

I just found a similar question at JavaScript document.execCommand remove formatBlock formatting?

All I needed to do was

[webView stringByEvaluatingJavaScriptFromString:@"document.execCommand(\"FormatBlock\", false, \"<div>\")"];