How to Edit HTML in a Wordpress Blog

1. Create a new post if you haven't already done so by clicking the 'New Post' button in the navigation bar of WordPress.
2. Compose the main text of your post within the 'Visual' editor, which is the default view which appears when you create a new post. Click the 'HTML' tab once you've finished adding content -- which may also include videos or images -- to your post.

3. Edit any HTML you want to change, such as tags for image or videos, line spacing between paragraphs or font size or style. Switch back to 'Visual' after making any changes to make sure they've taken effect and, if they have, to see how they look.
4. Undo any changes with which you're not satisfied by clicking back to 'HTML' view and pressing 'Ctrl-Z.'