This is the code of HTML Code Editor copy and paste it in your blogger as shown in the video -
<!-- JQuery -->
<script src="https://code.jquery.com/jquery-1.12.4.min.js"></script>
<!-- CSS Style -->
<style type="text/css">
br { display: none; }
textarea{display: block;margin: 10px 0; width:100%; border: 1px solid #333;}
iframe{display: block;margin: 10px 0; width:100%; resize:both; overflow: auto; border: 1px solid #333;}
</style>
<!-- JavaScript -->
<script type="text/javascript">
function updateIframe(){
var myFrame = $("#myframe").contents().find('body');
var textareaValue = $("textarea").val();
myFrame.html(textareaValue);
}
</script>
<h1><marquee><font face="Calibri" color="#FF0000">See Your HTML Code Preview</font></marquee></h1>
<textarea rows="5" cols="50" placeholder="Type HTML Code Here"></textarea>
<button style="border:1" type="button" onclick="updateIframe()"><i class="fa fa-pencil-square-o"></i>Run The Code</button>
<iframe id="myframe"></iframe>
<div>
<p align="center"><span style="text-decoration: none"><b>
<font face="Calibri">Created By</font><font color="#FF0000" face="Calibri"> <a href="https://www.mohdwazid.com/">
<font color="#FF0000" face="Calibri"><span style="text-decoration: none">Mohd Wazid</span></font></a></b></div>
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