发布于 2015-12-10 04:01:46 | 309 次阅读 | 评论: 0 | 来源: 网友投递

这里有新鲜出炉的Bootstrap入门，程序狗速度看过来！

Bootstrap Web前端CSS框架

Bootstrap是Twitter推出的一个开源的用于前端开发的工具包。它由Twitter的设计师Mark Otto和Jacob Thornton合作开发，是一个CSS/HTML框架。Bootstrap提供了优雅的HTML和CSS规范，它即是由动态CSS语言Less写成。Bootstrap一经推出后颇受欢迎，一直是GitHub上的热门开源项目，包括NASA的MSNBC（微软全国广播公司）的Breaking News都使用了该项目。

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Bootstrap 4.0.0-alpha.2 发布，更新如下：

• Overhauled spacing utilities to use a numerical tiering (to avoid confusion with grid tiers).

• Continued refactoring efforts to replace markup-specific selectors with classes across several components (including pagination, lists, and more). Still more to do here with additional components.

• Reverted media queries and grid containers from rems to pixels as viewports are not affected by font-size. See #17403 for details. We’ve got a ton of grid work left, too. Feel free to follow along with #18471.

• Reverted .0625rem width borders to 1px for more consistent component borders that avoid zoom and font-size bugs across browsers.

• Renamed .img-responsive to .img-fluid to avoid future confusion on the various responsive image solutions out there.

• Replaced ZeroClipboard with clipboard.js for Flash-independent copy buttons.

• Inputs and buttons now share the same border variable to ensure components are always sized similarly.

• Updated all pseudo-element selectors to use the spec’s preferred double colon (e.g., ::before as opposed to :before).

• Cards now have outline variants and mixins to support extending base classes further.

• Utility classes for floats and text alignment now have responsive ranges. This means we’ve dropped the none-responsive classes to avoid duplication.

• Added support for jQuery 2.

• And hundreds more Sass improvements, bug fixes, documentation updates, and more.

详情请看：blog post

下载地址：v4.0.0-alpha.2

Bootstrap是快速开发Web应用程序的前端工具包。它是一个CSS和HTML的集合，它使用了最新的浏览器技术，给你的Web开发提供了时尚的版式，表单，buttons，表格，网格系统等等。

 

历史版本 :
前端采用 Bootstrap 4 开发的 Xiuno BBS 4.0 正式版发布
Bootstrap 4 正式发布！带来新的示例和新的主题
Bootstrap v4.0.0-beta.3 发布，Web 前端 UI 框架
Bootstrap v4.0.0-beta.2 发布，Web 前端 UI 框架
时隔 7 个月，Bootstrap 4 首个 Beta 版终于发布
Bootstrap v4.0.0-alpha.6 发布，最后一个 alpha 版
Bootstrap v4.0.0-alpha.5 发布，大量更新
Bootstrap v4.0.0-alpha.4 发布
Bootstrap v4.0.0-alpha.3 发布，改进网格系统
Bootstrap 3.3.7 发布，支持 jQuery 3
Bootstrap DatePicker 1.6.1 发布
Bootstrap 4.0.0-alpha.2 发布