File: modules/system/assets/ui/less/site.utility.less

//
// Utility classes
// --------------------------------------------------


// Floats
// -------------------------

.clearfix {
    .clearfix();
}
.center-block {
    .center-block();
}
.pull-right {
    float: right !important;
}
.pull-left {
    float: left !important;
}


// Toggling content
// -------------------------

.hide {
    display: none !important;
}
.show {
    display: block !important;
}
.invisible {
    visibility: hidden;
}
.text-hide {
    .text-hide();
}

// Hide from screenreaders and browsers
//
// Credit: HTML5 Boilerplate

.hidden {
    display: none !important;
    visibility: hidden !important;
}

// For Affix plugin
// -------------------------

.affix {
    position: fixed;
}

//
// Responsive: Utility classes
// --------------------------------------------------

// IE10 in Windows (Phone) 8
//
// Support for responsive views via media queries is kind of borked in IE10, for
// Surface/desktop in split view and for Windows Phone 8. This particular fix
// must be accompanied by a snippet of JavaScript to sniff the user agent and
// apply some conditional CSS to *only* the Surface/desktop Windows 8. Look at
// our Getting Started page for more information on this bug.
//
// For more information, see the following:
//
// Issue: https://github.com/twbs/bootstrap/issues/10497
// Docs: http://getbootstrap.com/getting-started/#browsers
// Source: http://timkadlec.com/2012/10/ie10-snap-mode-and-responsive-design/

@-ms-viewport {
    width: device-width;
}


// Visibility utilities
.visible-xs,
.visible-sm,
.visible-md,
.visible-lg {
    .responsive-invisibility();
}

.visible-xs {
    @media (max-width: @screen-xs-max) {
        .responsive-visibility();
    }
}
.visible-sm {
    @media (min-width: @screen-sm-min) and (max-width: @screen-sm-max) {
        .responsive-visibility();
    }
}
.visible-md {
    @media (min-width: @screen-md-min) and (max-width: @screen-md-max) {
        .responsive-visibility();
    }
}
.visible-lg {
    @media (min-width: @screen-lg-min) {
        .responsive-visibility();
    }
}

.hidden-xs {
    @media (max-width: @screen-xs-max) {
        .responsive-invisibility();
    }
}
.hidden-sm {
    @media (min-width: @screen-sm-min) and (max-width: @screen-sm-max) {
        .responsive-invisibility();
    }
}
.hidden-md {
    @media (min-width: @screen-md-min) and (max-width: @screen-md-max) {
        .responsive-invisibility();
    }
}
.hidden-lg {
    @media (min-width: @screen-lg-min) {
        .responsive-invisibility();
    }
}


// Print utilities
//
// Media queries are placed on the inside to be mixin-friendly.

.visible-print {
    .responsive-invisibility();

    @media print {
        .responsive-visibility();
    }
}

.hidden-print {
    @media print {
        .responsive-invisibility();
    }
}