The basic idea of PJAX is that you update only the parts of the page that change when the user navigates through your app. However, unlike a normal AJAX app that returns only data (JSON) from the server, a PJAX request actually contains normal HTML that has been generated on the server
Bootstrap is a toolkit from Twitter designed to kickstart development of webapps and sites.
It includes base CSS and HTML for typography, forms, buttons, tables, grids, navigation, and more.
Nerd alert: Bootstrap is built with Less and was designed to work out of the gate with modern browsers in mind.
Instead of relying on custom, OS specific, proprietary plug-ins, they can now easily build and maintain their apps using a few simple JavaScript APIs and have the browser do the heavy lifting.
Google has done what no other browser makes could do over the past 13 years; Chrome surpassed IE for the first time in market share. Chrome was estimated by StatCounter to have held 32.71 percent of the browser market on Sunday, while IE declined to 32.48 percent and Mozilla was at 24.88 percent.