challenge-vtex-io-leonardo-pereira-rocha/styles/sass/utils/_mixin.scss

// MEDIA QUERY MANAGER
/*
0 - 600PX: Phone
600 - 900px: Table portrait
900 - 1200px: Tablet landscape
[1200 - 1800] is where our nortal styles apply
1800px + : Big desktop
*/
@mixin respond-phone {
    @media (max-width: 600px) {
        @content;
    }
}

// - phone 600px
// - tab-port 900px
// - tab-land 600px
// - big-desktop 600px
// 1em = 16px
@mixin respond($breakpoint) {
    @if $breakpoint == iphonex {
        @media only screen and (max-width: 23.43em) {
            @content;
        } //375px
    }
    @if $breakpoint == phone {
        @media only screen and (max-width: 37.5em) {
            @content;
        } //600px
    }
    @if $breakpoint == tab-port {
        @media only screen and (max-width: 56.25em) {
            @content;
        } //900px
    }
    @if $breakpoint == tab-land {
        @media only screen and (max-width: 75em) {
            @content;
        } //1200px
    }
    @if $breakpoint == big-desktop {
        @media only screen and (min-width: 112.5em) {
            @content;
        } //1800px
    }
}
// 86em = 1.376
// 90em = 1440
//80em = 1280
@mixin clearFix() {
    &:after {
        content: " "; /* Older browser do not support empty content */
        visibility: hidden;
        display: block;
        height: 0;
        clear: both;
    }
}

/* Media Query M3 */

@mixin mq($width, $type: min) {
    @if map_has_key($grid-breakpoints, $width) {
        $width: map_get($grid-breakpoints, $width);
        @if $type == max {
            $width: $width - 1px;
        }
        @media only screen and (#{$type}-width: $width) {
            @content;
        }
    }
}

@mixin mq_range($min, $max) {
    @if (
        map_has_key($grid-breakpoints, $min) and
            map_has_key($grid-breakpoints, $max)
    ) {
        $width_max: map_get($grid-breakpoints, $max);
        $width_min: map_get($grid-breakpoints, $min);
        $width_max: $width_max - 1px;
        @media only screen and (min-width: $width_min) and (max-width: $width_max) {
            @content;
        }
    }
}