This document provides an overview of common HTML and CSS tags used for formatting content on web pages and blogs. It describes tags for headings, paragraphs, bold, italic and break text formatting. Image tags are covered for adding images and linking them. Link tags are also included for linking images and text. Finally, it introduces CSS and shows how inline style tags can be used for additional text formatting like font properties, size, family and centering. Best practices are noted around using semantic HTML tags over deprecated ones and separating styles into external CSS files.