Some common HTML elements are always in need for basic accessibility enhancements through `role`s and Aria attributes. Below is a list of some of the most frequently used ones.
-{% callout info %}
-**Heads up!** As we go through the alphas, we'll be moving more accessibility notes here with links to specific sections from other areas of the docs.
-{% endcallout %}
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### Button groups
In order for assistive technologies–such as screen readers–to convey that a series of buttons is grouped, an appropriate `role` attribute needs to be provided. For button groups, this would be `role="group"`, while toolbars should have a `role="toolbar"`.
Pull in Bootstrap's **source files** into nearly any project with some of the most popular package managers. No matter the package manager, Bootstrap will **require a Sass compiler, [Autoprefixer](https://github.com/postcss/autoprefixer), and [postcss-flexbugs-fixes](https://github.com/luisrudge/postcss-flexbugs-fixes)** for a setup that matches our official compiled versions.
-{% callout warning %}
-**Heads up!** Not all package managers have the v4 alpha published yet, but we should have them up shortly!
-{% endcallout %}
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### npm
Install Bootstrap in your Node powered apps with [the npm package](https://www.npmjs.org/package/bootstrap):
projects / thirdparty / bootstrap.git / commitdiff
