GroundworkCSS
Responsive HTML5, CSS and JavaScript Framework
17 Alternatives To GroundworkCSS
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Bootstrap
Simple and flexible HTML, CSS, and JS for popular UI components and interactions
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Bulma
Bulma is an open source CSS framework based on Flexbox and built with Sass. It’s 100% responsive, fully modular, and available for free.
Element UI
Element, a Vue 2.0 based component library for developers, designers and product managers.
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Foundation
The most advanced responsive front-end framework in the world
HTML5 Boilerplate
A rock-solid default for HTML5 awesome.
Ink
Rock solid freelance contracts in minutes
Material Design Lite
Material Design Lite Components in HTML/CSS/JS
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Material-UI
A CSS Framework and a Set of React Components that Implement Google’s Material Design
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Metro UI CSS
Metro UI CSS a set of styles to create a site with an interface similar to Windows 8.
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Purecss
A set of small, responsive CSS modules that you can use in every web project.
Semantic UI
A UI Component library implemented using a set of specifications designed around natural language
Spectre
Spectre is a web application to diff screenshots.
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UIKit
A lightweight and modular front-end framework for developing fast and powerful web interfaces
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Webix UI
An enterprise JavaScript Library for cross-platform app development with HTML5 JavaScript widgets and easy integration with most popular JavaScript Frameworks.
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alloyui
AlloyUI is a framework built on top of YUI3 (JavaScript) that uses Bootstrap (HTML/CSS) to provide a simple API for building high scalable applications.
w2ui
W2UI is a small JavaScript UI library with a complete set of widgets: layout, grid, sidebar, toolbar, tabs, fields, popup, utilities.