Bootstrap 3.3.5 发布下载，该版本着重修复了 bug，改进辅助功能，以及文档更新。值得关注更新如下：
Updated to Normalize.css v3.0.3.
List groups now support <button> elements.
Cleaned up some extraneous padding on jumbotrons across various viewports.
Fixed input group sizing classes on all supported elements for real this time.
Applied a few tooltip and popover positioning fixes.
Fixed behavior when using tooltips and popovers that are triggered by multiple events.
Fixed some memory leakage in the tooltip and popover plugins.
Fixed incorrect Affix positioning when a webpage has a sticky footer.
Fixed npm package to include all Grunt scripts, so that grunt dist works if you installed Bootstrap from npm.
更多内容请查看更新日志： changelog
下载：v3.3.5
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。