The document provides an overview of how to use CSS3 in WordPress. It introduces the presenter and their goal to teach the audience at least one new thing. It then covers CSS/CSS3 basics, terminology, syntax, properties, specificity, inspecting CSS, new CSS3 modules like colors, gradients, border radius, and how to add CSS in WordPress through themes, plugins or inline styles. Resources for further learning CSS are also provided, followed by time for questions.