New Project: Twitter Bootstrap
The right-hand pane of the Project Category and Options dialog box looks as follows when you choose Static Web in the left-hand pane and then choose Twitter Bootstrap from the list in the right-hand pane.
The feature is supported only in the Ultimate edition when the HTML Tools plugin is installed and enabled. The plugin is bundled with IntelliJ IDEA and activated by default. If the plugin is not activated, enable it on the Plugins page of the Settings / Preferences Dialog as described in Enabling and Disabling Plugins.