How will your library serve mobile device users? By building apps from scratch? By offering entirely separate content? Or by modifying your site for mobile devices? This author found that the best fit for a joint library serving Victoria College and the University of Houston-Victoria was to build a mobile website in HTML and CSS using mobile standards and best practices suitable for those devices. As the sole web services librarian, it was her duty to develop a browser-based mobile website and code it from scratch. In this article, she shares the findings, experiences, and helpful code snippets for building a mobile website on your own.