In the contemporary workplace, use of development environments like Dreamweaver has become commonplace. While this software can make some complicated tasks easy, it is best to learn how to directly manipulate the underlying code, as some tasks cannot be easily achieved using the graphical interface, including many common debugging, site maintenance, and custom design tasks. The use of Content Management Systems (CMS) with highly developed Graphic User Interfaces (GUI) tends to abstract the user away from code-level concerns; even so, knowing how to directly edit HTML and CSS is a crucial skill for the CMS user. This video introduces both development environments and content management systems at a beginner's level. This unit is not a substitute for taking a class or following an online tutorial on the specific setup or software you will be using.