Default Sizes for Twitter Bootstrap’s Media Queries

Nicholas Cerminara
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I love Twitter's Bootstrap. I find that when developing with it, either Bootstrap 2 (2.3.2) or Bootstrap 3, that I always need to apply custom styles at the different sizes. Especially when going beyond Bootstrap's standard functionality. After all, it's just a front-end framework.

Below you'll find nicely formatted Media Queries for starting with either of the Bootstrap versions. You can use this as a starting point for your projects. It's basically what I use when creating a new website or webapp. I've also provided links to Github for quick access.

Bootstrap 3 Media Query Breakpoints

Bootstrap 3 is a mobile-first front-end framework. I've included the correct order for the Media Queries below, but I've also included at the bottom of them the non-mobile first breakpoints in case some people aren't used to the mobile-first methodology since technically both will work.

Min-Width: Refers to everything greater than or equal to the amount given.
Max-Width: Refers to everything less than or equal to the amount given.

/*==================================================
=            Bootstrap 3 Media Queries             =
==================================================*/

    /*==========  Mobile First Method  ==========*/

    /* Custom, iPhone Retina */ 
    @media only screen and (min-width : 320px) {

    }

    /* Extra Small Devices, Phones */ 
    @media only screen and (min-width : 480px) {

    }

    /* Small Devices, Tablets */
    @media only screen and (min-width : 768px) {

    }

    /* Medium Devices, Desktops */
    @media only screen and (min-width : 992px) {

    }

    /* Large Devices, Wide Screens */
    @media only screen and (min-width : 1200px) {

    }

    /*==========  Non-Mobile First Method  ==========*/

    /* Large Devices, Wide Screens */
    @media only screen and (max-width : 1200px) {

    }

    /* Medium Devices, Desktops */
    @media only screen and (max-width : 992px) {

    }

    /* Small Devices, Tablets */
    @media only screen and (max-width : 768px) {

    }

    /* Extra Small Devices, Phones */ 
    @media only screen and (max-width : 480px) {

    }

    /* Custom, iPhone Retina */ 
    @media only screen and (max-width : 320px) {

    }

Bootstrap 2.3.2 Media Query Breakpoints


/*=====================================================
=            Bootstrap 2.3.2 Media Queries            =
=====================================================*/
@media only screen and (max-width : 1200px) {

}

@media only screen and (max-width : 979px) {

}

@media only screen and (max-width : 767px) {

}

@media only screen and (max-width : 480px) {

}

@media only screen and (max-width : 320px) {

}

Improvements

If you have improvements, corrections, or just a different way, I would love to hear it. I'll gladly update this if anyone has better or more accurate information. Either post a comment or send me a Pull Request on GitHub.

Related Reading For some more information on using the Bootstrap Grid, check out our other article: Understanding the Bootstrap 3 Grid System.