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comparison default/assets/scss/vendors/bootstrap/mixins/_breakpoints.scss @ 0:1d038bc9b3d2 default tip

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author Liny <dev@neowd.com>
date Sat, 31 May 2025 09:21:51 +0800
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1 // Breakpoint viewport sizes and media queries.
2 //
3 // Breakpoints are defined as a map of (name: minimum width), order from small to large:
4 //
5 // (xs: 0, sm: 576px, md: 768px, lg: 992px, xl: 1200px)
6 //
7 // The map defined in the `$grid-breakpoints` global variable is used as the `$breakpoints` argument by default.
8
9 // Name of the next breakpoint, or null for the last breakpoint.
10 //
11 // >> breakpoint-next(sm)
12 // md
13 // >> breakpoint-next(sm, (xs: 0, sm: 576px, md: 768px, lg: 992px, xl: 1200px))
14 // md
15 // >> breakpoint-next(sm, $breakpoint-names: (xs sm md lg xl))
16 // md
17 @function breakpoint-next($name, $breakpoints: $grid-breakpoints, $breakpoint-names: map-keys($breakpoints)) {
18 $n: index($breakpoint-names, $name);
19 @return if($n < length($breakpoint-names), nth($breakpoint-names, $n + 1), null);
20 }
21
22 // Minimum breakpoint width. Null for the smallest (first) breakpoint.
23 //
24 // >> breakpoint-min(sm, (xs: 0, sm: 576px, md: 768px, lg: 992px, xl: 1200px))
25 // 576px
26 @function breakpoint-min($name, $breakpoints: $grid-breakpoints) {
27 $min: map-get($breakpoints, $name);
28 @return if($min != 0, $min, null);
29 }
30
31 // Maximum breakpoint width. Null for the largest (last) breakpoint.
32 // The maximum value is calculated as the minimum of the next one less 0.1.
33 //
34 // >> breakpoint-max(sm, (xs: 0, sm: 576px, md: 768px, lg: 992px, xl: 1200px))
35 // 767px
36 @function breakpoint-max($name, $breakpoints: $grid-breakpoints) {
37 $next: breakpoint-next($name, $breakpoints);
38 @return if($next, breakpoint-min($next, $breakpoints) - 1px, null);
39 }
40
41 // Returns a blank string if smallest breakpoint, otherwise returns the name with a dash infront.
42 // Useful for making responsive utilities.
43 //
44 // >> breakpoint-infix(xs, (xs: 0, sm: 576px, md: 768px, lg: 992px, xl: 1200px))
45 // "" (Returns a blank string)
46 // >> breakpoint-infix(sm, (xs: 0, sm: 576px, md: 768px, lg: 992px, xl: 1200px))
47 // "-sm"
48 @function breakpoint-infix($name, $breakpoints: $grid-breakpoints) {
49 @return if(breakpoint-min($name, $breakpoints) == null, "", "-#{$name}");
50 }
51
52 // Media of at least the minimum breakpoint width. No query for the smallest breakpoint.
53 // Makes the @content apply to the given breakpoint and wider.
54 @mixin media-breakpoint-up($name, $breakpoints: $grid-breakpoints) {
55 $min: breakpoint-min($name, $breakpoints);
56 @if $min {
57 @media (min-width: $min) {
58 @content;
59 }
60 } @else {
61 @content;
62 }
63 }
64
65 // Media of at most the maximum breakpoint width. No query for the largest breakpoint.
66 // Makes the @content apply to the given breakpoint and narrower.
67 @mixin media-breakpoint-down($name, $breakpoints: $grid-breakpoints) {
68 $max: breakpoint-max($name, $breakpoints);
69 @if $max {
70 @media (max-width: $max) {
71 @content;
72 }
73 } @else {
74 @content;
75 }
76 }
77
78 // Media that spans multiple breakpoint widths.
79 // Makes the @content apply between the min and max breakpoints
80 @mixin media-breakpoint-between($lower, $upper, $breakpoints: $grid-breakpoints) {
81 $min: breakpoint-min($lower, $breakpoints);
82 $max: breakpoint-max($upper, $breakpoints);
83
84 @media (min-width: $min) and (max-width: $max) {
85 @content;
86 }
87 }
88
89 // Media between the breakpoint's minimum and maximum widths.
90 // No minimum for the smallest breakpoint, and no maximum for the largest one.
91 // Makes the @content apply only to the given breakpoint, not viewports any wider or narrower.
92 @mixin media-breakpoint-only($name, $breakpoints: $grid-breakpoints) {
93 $min: breakpoint-min($name, $breakpoints);
94 $max: breakpoint-max($name, $breakpoints);
95
96 @if $min != null and $max != null {
97 @media (min-width: $min) and (max-width: $max) {
98 @content;
99 }
100 } @else if $max == null {
101 @include media-breakpoint-up($name)
102 } @else if $min == null {
103 @include media-breakpoint-down($name)
104 }
105 }