Copy the complete HTML code for the button you want to put in a post on Blogger. Navigate to Blogger and log in to your account. Click the "New Post" button on your Dashboard.

Adding a Like Button to Blogspot. The default template for blogs on Blogspot (now known as Blogger and owned by Google) includes a "Share" section at the bottom of each post with buttons for ...

If so, this section is for you. Facebook makes it quite easy to copy-paste a code snippet right into the HTML of any page/post and have the “Like” button appear instantly.