You, your users, and Alice from Wonderland have something in common. At one point, everyone has fallen into a hole of perplexity, confusion, and sometimes hysterical madness. Unlike Alice, we can navigate ourselves and our users around the chaotic abyss that we call the web. Shipping inaccessible experiences to our users can have unpleasant effects. Being cognizant of all the things that can go wrong and who are potential users are will take us farther along our journey. In this session we are going to learn about common accessibility violations that surface when we are lackadaisical about the experiences we ship. We will cover semantic markup, alt attributes and images, color contrast, and more. Attendees will walk away able to identify these problem areas in their codebases and learning techniques, tools, and best practices to keep our users happy and not drive them mad.