Sticky post feature are default in wordpress but in blogger you have to do same work to add a sticky post. Sticky post will stay above all the posts and no matter how many new post you add. This can be used for important highlited post, announcements, blog contest, popular posts and your favourite post.
So, starting with the steps.
Go to your blogger account.
Navigate to : Dashboard >> Layout >> Edit html
And find the following code
<div id='main-wrapper'>
<b:section class='main' id='main' showaddelement='no'>
<b:widget id='Blog1' locked='true' title='Blog Posts' type='Blog'/>
</b:section></div>
Now inside the above code you can find a code . This code is for the post section. We can edit this code to add another gadget on our post body.
You have to change NO to Yes in the above code. That means after editing the code it should look like . Save the template.
Now navigate to Page Elements and you can notice a new Add a Gadget option there above your post contents. Check out the below screenshot.













