There area unit a large number of major changes to Bootstrap and it’s not possible to hide all of them thoroughly here, therefore here area unit a number of our favourite highlights:
Improved grid system.
We’ve superimposed a brand new grid tier to raised target mobile devices and fully overhauled our linguistics mixins.The grid system is now more flexible and sophisticated.
Dropped wells, thumbnails, and panels for cards.
Cards area unit a spanking new part to Bootstrap, however, they’ll feel super acquainted as they are doing nearly everything wells, thumbnails, and panels did, solely high.
Brand new customization options.
Instead of relegation vogue gildings like gradients, transitions, shadows, and a lot of to a separate stylesheet like v3, we’ve affected all those choices into Sass variables. wish default transitions on everything or to disable rounded corners? merely update a variable and recompile.
Dropped IE8 support and moved to
rem andem units.
Dropping support for IE8 suggests that we are able to cash in
ofthe most effective elements of CSS while not being command back with CSS hacks or fallbacks. Pixels are swapped for rems and ems wherever applicable to create responsive typography and element filler even easier. If you wish IE8 support, keep victimization Bootstrap three.
We rewrote it beat Markdown and side many handy plugins to contour examples and code snippets to create operating with our docs approach easier. Improved search is additionally
And tons more!
Custom kind controls, margin and cushioning categories, new utility categories, and additional have conjointly been enclosed.