Open your tumblr dashboard, head to **Account** and click on your tumblr blog below **TUMBLRS**.
Click **Edit appearance** on the sidebar.
Click on **Edit theme** inside the content area.
Click on **Edit HTML** in the top left corner.
Make sure to click **Save** and review your updated blog with Userlike on it. Note that updating the preview (Step 5) alone will not save your changes.