fuse-angular/src/@fuse/scss/mixins/_breakpoints.scss

// Media step breakpoint mixin based on Angular Material lib
$breakpoints: (
    xs: 'screen and (max-width: 599px)',
    sm: 'screen and (min-width: 600px) and (max-width: 959px)',
    md: 'screen and (min-width: 960px) and (max-width: 1279px)',
    lg: 'screen and (min-width: 1280px) and (max-width: 1919px)',
    xl: 'screen and (min-width: 1920px) and (max-width: 5000px)',
    lt-sm: 'screen and (max-width: 599px)',
    lt-md: 'screen and (max-width: 959px)',
    lt-lg: 'screen and (max-width: 1279px)',
    lt-xl: 'screen and (max-width: 1919px)',
    gt-xs: 'screen and (min-width: 600px)',
    gt-sm: 'screen and (min-width: 960px)',
    gt-md: 'screen and (min-width: 1280px)',
    gt-lg: 'screen and (min-width: 1920px)'
) !default;

$grid-breakpoints: (
    xs: 0,
    sm: 600px,
    md: 960px,
    lg: 1280px,
    xl: 1920px
) !default;

@mixin media-breakpoint($breakpointName) {

    $mediaQuery: map_get($breakpoints, $breakpointName);

    @if ($mediaQuery != null) {

        @media #{$mediaQuery} {
            @content
        }
    }
}

//    >> breakpoint-next(sm)
//    md
//    >> breakpoint-next(sm, (xs: 0, sm: 576px, md: 768px, lg: 992px, xl: 1200px))
//    md
//    >> breakpoint-next(sm, $breakpoint-names: (xs sm md lg xl))
//    md
@function breakpoint-next($name, $breakpoints: $grid-breakpoints, $breakpoint-names: map-keys($breakpoints)) {
    $n: index($breakpoint-names, $name);
    @return if($n < length($breakpoint-names), nth($breakpoint-names, $n + 1), null);
}

// Minimum breakpoint width. Null for the smallest (first) breakpoint.
//
//    >> breakpoint-min(sm, (xs: 0, sm: 576px, md: 768px, lg: 992px, xl: 1200px))
//    576px
@function breakpoint-min($name, $breakpoints: $grid-breakpoints) {
    $min: map-get($breakpoints, $name);
    @return if($min != 0, $min, null);
}

// Maximum breakpoint width. Null for the largest (last) breakpoint.
// The maximum value is calculated as the minimum of the next one less 0.1.
//
//    >> breakpoint-max(sm, (xs: 0, sm: 576px, md: 768px, lg: 992px, xl: 1200px))
//    767px
@function breakpoint-max($name, $breakpoints: $grid-breakpoints) {
    $next: breakpoint-next($name, $breakpoints);
    @return if($next, breakpoint-min($next, $breakpoints) - 1px, null);
}

// Returns a blank string if smallest breakpoint, otherwise returns the name with a dash infront.
// Useful for making responsive utilities.
//
//    >> breakpoint-infix(xs, (xs: 0, sm: 576px, md: 768px, lg: 992px, xl: 1200px))
//    ""  (Returns a blank string)
//    >> breakpoint-infix(sm, (xs: 0, sm: 576px, md: 768px, lg: 992px, xl: 1200px))
//    "-sm"
@function breakpoint-infix($name, $breakpoints: $grid-breakpoints) {
    @return if(breakpoint-min($name, $breakpoints) == null, "", "-#{$name}");
}

// Media of at least the minimum breakpoint width. No query for the smallest breakpoint.
// Makes the @content apply to the given breakpoint and wider.
@mixin media-breakpoint-up($name, $breakpoints: $grid-breakpoints) {
    $min: breakpoint-min($name, $breakpoints);
    @if $min {
        @media (min-width: $min) {
            @content;
        }
    } @else {
        @content;
    }
}

// Media of at most the maximum breakpoint width. No query for the largest breakpoint.
// Makes the @content apply to the given breakpoint and narrower.
@mixin media-breakpoint-down($name, $breakpoints: $grid-breakpoints) {
    $max: breakpoint-max($name, $breakpoints);
    @if $max {
        @media (max-width: $max) {
            @content;
        }
    } @else {
        @content;
    }
}

// Media that spans multiple breakpoint widths.
// Makes the @content apply between the min and max breakpoints
@mixin media-breakpoint-between($lower, $upper, $breakpoints: $grid-breakpoints) {
    $min: breakpoint-max($lower, $breakpoints);
    $max: breakpoint-max($upper, $breakpoints);

    @media (min-width: $min) and (max-width: $max) {
        @content;
    }
}

// Media between the breakpoint's minimum and maximum widths.
// No minimum for the smallest breakpoint, and no maximum for the largest one.
// Makes the @content apply only to the given breakpoint, not viewports any wider or narrower.
@mixin media-breakpoint-only($name, $breakpoints: $grid-breakpoints) {
    $min: breakpoint-min($name, $breakpoints);
    $max: breakpoint-max($name, $breakpoints);

    @media (min-width: $min) and (max-width: $max) {
        @content;
    }
}