Top 20 NuGet CSS Packages

Command line tool to compile LESS files
A mobile-first CSS framework that supports responsive mobile first and fixed desktop layouts.
Adds support for adding and displaying Rails "flash" messages to MVC. Works with any version of MVC 3.0 and higher. See the project URL for more examples.
This packages adds bootstrap 3 support to Durandal written by Rob Eisenberg. Built using Durandal 2.0.1 ---------------------------------------------------------------------------- Durandal is a cross-device, cross-platform client framework written in JavaScript and designed to make Singl...
Provides SCSS compilation support for System.Web.Optimization
This library can minify and/or bundle any Javascript and/or Cascading Style Sheets. This is a direct .NET port of the original Yahoo! UI Library: YUI Compressor.
Metro UI CSS a set of styles to create a site with an interface similar to Windows 8
All credit goes to Joel Birch, I simply made it a NuGet package. Superfish is an enhanced Suckerfish-style menu jQuery plugin that takes an existing pure CSS drop-down menu (so it degrades gracefully without JavaScript). See project site for more details and examples.
Bootstrap-table is a javascript plugin that makes it easy to add extended row information (by clicking on a row) in HTML tables with the help of Twitter Bootstrap.
Hogan HTML template compilation support for Cassette.
jQuery-tmpl HTML template compilation support for Cassette.
metro-bootstrap from TalksLab based on Twitter Bootstrap. Twitter Bootstrap with Metro style.
An extension for the ClientDependency framework to support .Less (dotless)
A plugin for Cassette that uses the actual less.js code to compile LESS files. This library uses ClearScript.V8. Please note: This library will extract the ClearScript proxy libraries and V8 runtime libraries into the temporary ASP.NET files directory (as specified by HttpRuntime.CodeGenDir). In or...
Helpers to fingerprint urls to static resources
Fabric is a responsive, mobile-first, front-end framework, designed to make it quick and simple for you to create web experiences using the Office Design Language. It’s easy to get up and running with Fabric—whether you’re creating a new Office experience from scratch or adding new features to an ex...
This framework uses styles from the Office UI Fabric project. Fabric is a responsive, mobile-first collection of styles and tools designed to make it quick and simple for you to create web experiences using the Office Design Language.
HTTP handlers that transform *.less and *.coffee files into CSS and JavaScript resepectively on the fly.
Meleze.Web is a toolbox to optimize ASP.NET MVC 3.0, MVC 4.0 and MVC 5.0 applications. It provides HTML, JS and CSS minification of Razor views and caching of the returned pages. The package version 1.4.x targets ASP.NET MVC 4.0 and 5.0. Use version 1.3.x for MVC 3.0.
FileTagger provides HTML helpers to create tags for JavaScript, CSS or other file-based elements in an ASP.NET MVC project.