 Welcome to Sailor.org's HTML and CSS for Beginners course, part of our professional development program of study. This course is designed for adult learners who want targeted skills that they can immediately apply in a professional setting. HTML and CSS are the fundamental languages of the web, so it's increasingly important that we understand how they work. This course is designed for you to learn by doing, and by the end you will be able to create your very own website. Before we begin, here are some helpful hints. First, this course should take approximately 30 hours to complete, but if you already have some familiarity with web design, you may be able to work through the material quicker. You will need to use either Microsoft's Notepad, Mac's TextEdit, or a Linux TextEditor. You may also find the Mozilla Thimble web tool to be helpful. Next, you should create a folder on your desktop for all of your documents and other files. In the process of creating your first websites, you will want to make multiple copies. This way, you can experiment without worrying about losing your work. Also, having everything saved in one place will help you stay organized. Alright, let's get started.