Discovering Internet Explorer Developer Tools
Getting started with the tools is simple: press F12 or click Developer Tools from the Tools menu.
Once open, the tools exist in their own window, each one connected to a single tab in Internet Explorer. If you prefer to decrease the number of open windows, pin the tools to a tab by clicking the Pin button or pressing CTRL+P.
Some features of the tools do not need the complete tools interface. In that case, click the Minimize button or press CTRL+M when the tools are pinned. The tools become a row at the bottom of the window, providing access to just theCommand Menu bar.