Responsive breakpoints are CSS 3 media queries that tell a browser when and what page resolution to update the page's CSS style.
They are basically predefined page (viewport, screen) width values at which the page elements are updated and moved around.
Breakpoints are "the most important" feature in responsive Web design and is the core setting that powers all the millions of sites around the Web that can display perfectly on both mobile and desktop devices.
The breakpoint simply tells the browser when to switch from one display format to another.
Unison.js is a library coded in JavaScript that can be used (and is recommended) for larger websites where different CSS files and CSS technologies are used.
The library enables developers to move the CSS3-based media query breakpoints to JavaScript code and avoid situations where a CSS3 breakpoint is not loaded in one stylesheet or an error occurs in the CSS preprocessor.
Developers can declare breakpoints via JavaScript and use them inside CSS, SCSS (SASS), LESS and Stylus files.
This way all the breakpoints are managed from the same location and applied to all site pages the same way.
Unison.js also allows developers to name their breakpoints, so instead of using sizes like "1200px" to declare a breakpoint, they can use something like "wide-desktop" instead.
Requirements:
- JavaScript enabled on client side
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