Bootstrap 3 & 4

“We bring a personal and effective approach to every project we work on, which is why our clients love us and why they keep coming back.”

Bootstrap is a free and open-source CSS framework directed at responsive, mobile-first front-end web development. It contains CSS- and (optionally) JavaScript-based design templates for typography, forms, buttons, navigation, and other interface components.

Bootstrap is the sixth-most-starred project on GitHub, with more than 135,000 stars, behind freeCodeCamp (almost 307,000 stars) and marginally behind Vue.js framework. According to Alexa Rank, Bootstrap is in the top-2000 in US while vuejs.org is in top-7000 in US.

Bootstrap 4

Mark Otto announced Bootstrap 4 on October 29, 2014. The first alpha version of Bootstrap 4 was released on August 19, 2015. The first beta version was released on 10 August 2017. Mark suspended work on Bootstrap 3 on September 6, 2016, to free up time to work on Bootstrap 4. Bootstrap 4 was finalized on January 18, 2018.

Significant changes include:

  • Major rewrite of the code
  • Replacing Less with Sass
  • CSS Flexible Box support
  • Dropping support for IE8, IE9, and iOS 6
  • Adding responsive spacing and sizing utilities
  • Dropping the Glyphicons icon font
  • Improved form styling, buttons, drop-down menus, media objects and image classes
  • Increasing global font size from 14px to 16px
  • Huge number[quantify] of utility classes

About Zerone

Zerone Corporation was established in 2005 and is the leading software outsourcing company in Vietnam. We provide exceptional software outsourcing services and solutions to companies worldwide.


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