Bootstrap 5 alpha, 2020

Bootstrap 5’s very first alpha has arrived! We’ve been working hard for several months to refine the work we started in v4, and while we’re feeling great about our progress, there’s still even more to do.

New look and feel

We’ve built on the improvements to our docs homepage in v4.5.0 with an updated look and feel for the rest of our docs. Our docs pages are no longer full-width to improve readability and make our site feel less app-like and more content-like. We’ve also upgraded our sidebar to use expandable sections (powered by our Collapse plugin) for faster navigation.

We’re also sporting a brand new logo! More on that when v5 goes stable, but suffice to say we wanted to give the ol’ B in a rounded square a small upgrade.

Inspired by the CSS that created the very beginnings of this project, our logo embodies the feeling of a rule set—style bounded by curly braces. We love it and think you will, too. Expect to see it roll out to v4’s documentation, blog, and time as we continue to refine things and ship new releases.

jQuery and JavaScript

jQuery brought unprecedented access to complex JavaScript behaviors to millions (billions?) of people over the last decade and a half. I’m forever grateful for the empowerment and support it gave me to continue writing front-end code, learning new things, and embracing plugins from the community. Perhaps most importantly, it’s forever changed JavaScript itself, and that in itself is a monument to jQuery’s success. Thank you to every jQuery contributor and maintainer who made that possible for folks like me.

Thanks to advancement made in front-end development tools and browser support

CSS custom properties

As mentioned, we’ve begun using CSS custom properties in Bootstrap 5 thanks to dropping support for Internet Explorer. In v4, we only included a handful of root variables for color and fonts, and now we’ve added them for a handful of components and layout options.

Take for example our .table component, where we’ve added a handful of local variables to make striped, hoverable, and active table styles easier:

.table {

  –bs-table-bg: #{$table-bg};

  –bs-table-accent-bg: transparent;

  –bs-table-striped-color: #{$table-striped-color};

  –bs-table-striped-bg: #{$table-striped-bg};

  –bs-table-active-color: #{$table-active-color};

  –bs-table-active-bg: #{$table-active-bg};

  –bs-table-hover-color: #{$table-hover-color};

  –bs-table-hover-bg: #{$table-hover-bg};

  // Styles here…

}

We’re working to utilize the superpowers of both Sass and CSS custom properties for a more flexible system. You can read more about this in the Tables docs page and expect to see more usage in components like buttons soon.

Improved customizing docs

We’ve hunkered down and improved our documentation in several places, giving more explanation, removing ambiguity, and providing much more support for extending Bootstrap. It all starts with a whole new Customize section.

v5’s Customize docs expand on v4’s Theming page with more content and code snippets for building on top of Bootstrap’s source Sass files. We’ve fleshed out more content and even provided a starter npm project for you to get started with faster and easier. It’s also available as a template repo on GitHub, so you can freely fork and go.

Updated forms

In addition to the new Customize section, we’ve overhauled our Forms documentation and components. We’ve consolidated all our forms styles into a new Forms section (including the input group component) to give them the emphasis they deserve.

Alongside new docs pages, we’ve redesigned and de-duped all our form controls. In v4, we introduced an extensive suite of custom form controls—checks, radios, switches, files, and more—but those were in addition to whatever defaults each browser provided. With v5, we’ve gone fully custom.

Utilities API

We love seeing how many folks are building new and exciting CSS libraries and toolkits, challenging the way we’ve made on the web for the last decade-plus. It’s refreshing, to say the least, and affords us all an opportunity to discuss and iterate. As such, we’ve implemented a brand new utility API into Bootstrap 5.

Heads up! We’ve moved some of our former v4 utilities to a new Helpers section. These helpers are snippets of code that are longer than your usual property-value pairing for our services. Just our way of reorganizing things for more straightforward naming and improved documentation.

Enhanced grid system

Bootstrap 5’s very first alpha has arrived! We’ve been working hard for several months to refine the work we started in v4, and while we’re feeling great about our progress, there’s still even more to do.

New look and feel

We’ve built on the improvements to our docs homepage in v4.5.0 with an updated look and feel for the rest of our docs. Our docs pages are no longer full-width to improve readability and make our site feel less app-like and more content-like. We’ve also upgraded our sidebar to use expandable sections (powered by our Collapse plugin) for faster navigation.

We’re also sporting a brand new logo! More on that when v5 goes stable, but suffice to say we wanted to give the ol’ B in a rounded square a small upgrade.

Inspired by the CSS that created the very beginnings of this project, our logo embodies the feeling of a rule set—style bounded by curly braces. We love it and think you will, too. Expect to see it roll out to v4’s documentation, blog, and time as we continue to refine things and ship new releases.

jQuery and JavaScript

jQuery brought unprecedented access to complex JavaScript behaviors to millions (billions?) of people over the last decade and a half. I’m forever grateful for the empowerment and support it gave me to continue writing front-end code, learning new things, and embracing plugins from the community. Perhaps most importantly, it’s forever changed JavaScript itself, and that in itself is a monument to jQuery’s success. Thank you to every jQuery contributor and maintainer who made that possible for folks like me.

Thanks to advancement made in front-end development tools and browser support

CSS custom properties

As mentioned, we’ve begun using CSS custom properties in Bootstrap 5 thanks to dropping support for Internet Explorer. In v4, we only included a handful of root variables for color and fonts, and now we’ve added them for a handful of components and layout options.

Take for example our .table component, where we’ve added a handful of local variables to make striped, hoverable, and active table styles easier:

.table {

  –bs-table-bg: #{$table-bg};

  –bs-table-accent-bg: transparent;

  –bs-table-striped-color: #{$table-striped-color};

  –bs-table-striped-bg: #{$table-striped-bg};

  –bs-table-active-color: #{$table-active-color};

  –bs-table-active-bg: #{$table-active-bg};

  –bs-table-hover-color: #{$table-hover-color};

  –bs-table-hover-bg: #{$table-hover-bg};

  // Styles here…

}

We’re working to utilize the superpowers of both Sass and CSS custom properties for a more flexible system. You can read more about this in the Tables docs page and expect to see more usage in components like buttons soon.

Improved customizing docs

We’ve hunkered down and improved our documentation in several places, giving more explanation, removing ambiguity, and providing much more support for extending Bootstrap. It all starts with a whole new Customize section.

v5’s Customize docs expand on v4’s Theming page with more content and code snippets for building on top of Bootstrap’s source Sass files. We’ve fleshed out more content and even provided a starter npm project for you to get started with faster and easier. It’s also available as a template repo on GitHub, so you can freely fork and go.

Updated forms

In addition to the new Customize section, we’ve overhauled our Forms documentation and components. We’ve consolidated all our forms styles into a new Forms section (including the input group component) to give them the emphasis they deserve.

Alongside new docs pages, we’ve redesigned and de-duped all our form controls. In v4, we introduced an extensive suite of custom form controls—checks, radios, switches, files, and more—but those were in addition to whatever defaults each browser provided. With v5, we’ve gone fully custom.

Utilities API

We love seeing how many folks are building new and exciting CSS libraries and toolkits, challenging the way we’ve made on the web for the last decade-plus. It’s refreshing, to say the least, and affords us all an opportunity to discuss and iterate. As such, we’ve implemented a brand new utility API into Bootstrap 5.

Heads up! We’ve moved some of our former v4 utilities to a new Helpers section. These helpers are snippets of code that are longer than your usual property-value pairing for our services. Just our way of reorganizing things for more straightforward naming and improved documentation.

Enhanced grid system

By design Bootstrap 5 isn’t a complete departure from v4. We wanted everyone to be able to upgrade to this future version more easily after hearing about the difficulties from the v3 to v4 upgrade path. We’ve kept the bulk of the build system in place (minus jQuery) for this reason, and we’ve also built on the existing grid system instead of replacing it with something newer and hipper.

By design Bootstrap 5 isn’t a complete departure from v4. We wanted everyone to be able to upgrade to this future version more easily after hearing about the difficulties from the v3 to v4 upgrade path. We’ve kept the bulk of the build system in place (minus jQuery) for this reason, and we’ve also built on the existing grid system instead of replacing it with something newer and hipper.

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