How to edit source in Content Editor Web Part in SharePoint 2010

In SharePoint 2010 Editing content Editor Web Part is kind of tricky. I was unable to find the source and HTML Text editor in content Editor Web Part Property section in SharePoint 2010.
From Format Text Tab on the ribbon toolbar, I saw the HTML drop down list and selected to edit HTML source but the source I insert is not going into the SharePoint 2010 content editor web part at all.

After playing around for while, I came to know how to edit the content editor web part. I hope this will help someone who is having issues with SharePoint 2010 Content Editor Web Part.

Adding Content Editor Web Part in SharePoint 2010

Editing Tools | Insert | Web Part

Under categories go to media and content to add SharePoint 2010 content Editor web part

Categories | Media and Content | Content Editor

Click Add to insert Content Editor Web Part in SharePoint 2010 page

Your web part will say “ Edit this web part to add content to your page” Click on Content Editor Menu and go to Edit Web Part

As soon as you click on Edit Web Part, the message in Content Editor web part changes to “ Click here to add content”
Now you can click on HTML under Format Text and click on Edit HTML Source

Editing HTML Source in SharePoint 2010 content Editor Web Part

In HTML Source Editor you can input your HTML source. This is how you edit Content Editor Web Part to add html source in SharePoint 2010