Menu or Navbar
A standard navigation class navbar navbar-default
Grid System
grid system allows up to 12 columns across the page
Easy to customize
Bootstrap Grid system has four classes - xs, sm, md & lg
Modal & Tooltip
Modal is a dialog box/popup, Tooltip is small pop-up box
Grid Settings
xs (<768px), sm (>=768px), md (>=992px), lg (>=1200px)
The Carousel Plugin
The Carousel plugin is a Slideshow