There is a small project to achieve functional character text box display in italics so the reference to xheditor, online search,
<script src="jquery/jquery-1.4.2.min.js"></script>
<script>
$(document).ready(function(){
// var win = $('#ifr').contentWindow;
var win = document.getElementById('ifr').contentWindow.document;
var html = "<html><body></body></html>"
var s = $('#text_i').val();
//针对IE and !IE 的情况
win.designMode = "on";
win.contentEditable = true;
//
win.open();
//win.write(html);
win.write(s);
win.close();
//alert(win);
});
</script>
<span>
<input type="text" id="text_i" value="<i>斜体</i>" style="display:none;"/>
<iframe id="ifr" width="60" height="20" src="javascript:;">
</iframe>
</span>
Reproduced in: https: //www.cnblogs.com/flex_fly/archive/2011/01/19/1938998.html