其实tab和轮播差不多，也是放在了box里面

pull-right可以将菜单放在右边dropdownopen中的open是将组合按钮打开<divclass="nav-tabs-custom"><ulclass="navnav-tabspull-right"><liclass=""><ahref="#tab_1"data-toggle="tab"aria-expanded="false">Tab1</a></li><liclass=""><ahref="#tab_2"data-toggle="tab"aria-expanded="false">Tab2</a></li><liclass="active"><ahref="#tab_3"data-toggle="tab"aria-expanded="true">Tab3</a></li><liclass="dropdownopen"><aclass="dropdown-toggle"data-toggle="dropdown"href="#"aria-expanded="true">Dropdown<spanclass="caret"></span></a><ulclass="dropdown-menu"><lirole="presentation"><arole="menuitem"tabindex="-1"href="#">Action</a></li><lirole="presentation"><arole="menuitem"tabindex="-1"href="#">Anotheraction</a></li><lirole="presentation"><arole="menuitem"tabindex="-1"href="#">Somethingelsehere</a></li><lirole="presentation"class="divider"></li><lirole="presentation"><arole="menuitem"tabindex="-1"href="#">Separatedlink</a></li></ul></li><liclass="pull-right"><ahref="#"class="text-muted"><iclass="fafa-gear"></i></a></li></ul><divclass="tab-content"><divclass="tab-pane"id="tab_1"><b>Howtouse:</b><p>Exactlyliketheoriginalbootstraptabsexceptyoushouldusethecustomwrapper<code>.nav-tabs-custom</code>toachievethisstyle.</p></div><!--/.tab-pane--><divclass="tab-pane"id="tab_2">2222222222222</div><!--/.tab-pane--><divclass="tab-paneactive"id="tab_3">333333333333333</div><!--/.tab-pane--></div><!--/.tab-content--></div>