ID’s and classes are “hooks”! We need ways to describe content in an HTML/XHTML document. The basic elements like <h1>, <p>, and <ul> will often do the job, but our basic set of tags doesn’t cover every possible type of page element or layout choice. For this we need ID’s and Classes. For example <ul id="nav">, this will give us the chance to target this unordered list specifically, so that we may