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Sass (SCSS) media query mixins
//
// MEDIA QUERIES
//––––––––––––––––––––––––––––––––––––––––––––––––––
// A map of breakpoints.
$breakpoints: (
xs: 576px,
sm: 768px,
md: 992px,
lg: 1200px
);
//
// RESPOND ABOVE
//––––––––––––––––––––––––––––––––––––––––––––––––––
// @include respond-above(sm) {}
@mixin respond-above($breakpoint) {
// If the breakpoint exists in the map.
@if map-has-key($breakpoints, $breakpoint) {
// Get the breakpoint value.
$breakpoint-value: map-get($breakpoints, $breakpoint);
// Write the media query.
@media (min-width: $breakpoint-value) {
@content;
}
// If the breakpoint doesn't exist in the map.
} @else {
// Log a warning.
@warn 'Invalid breakpoint: #{$breakpoint}.';
}
}
//
// RESPOND BELOW
//––––––––––––––––––––––––––––––––––––––––––––––––––
// @include respond-below(sm) {}
@mixin respond-below($breakpoint) {
// If the breakpoint exists in the map.
@if map-has-key($breakpoints, $breakpoint) {
// Get the breakpoint value.
$breakpoint-value: map-get($breakpoints, $breakpoint);
// Write the media query.
@media (max-width: ($breakpoint-value - 1)) {
@content;
}
// If the breakpoint doesn't exist in the map.
} @else {
// Log a warning.
@warn 'Invalid breakpoint: #{$breakpoint}.';
}
}
//
// RESPOND BETWEEN
//––––––––––––––––––––––––––––––––––––––––––––––––––
// @include respond-between(sm, md) {}
@mixin respond-between($lower, $upper) {
// If both the lower and upper breakpoints exist in the map.
@if map-has-key($breakpoints, $lower) and map-has-key($breakpoints, $upper) {
// Get the lower and upper breakpoints.
$lower-breakpoint: map-get($breakpoints, $lower);
$upper-breakpoint: map-get($breakpoints, $upper);
// Write the media query.
@media (min-width: $lower-breakpoint) and (max-width: ($upper-breakpoint - 1)) {
@content;
}
// If one or both of the breakpoints don't exist.
} @else {
// If lower breakpoint is invalid.
@if (map-has-key($breakpoints, $lower) == false) {
// Log a warning.
@warn 'Your lower breakpoint was invalid: #{$lower}.';
}
// If upper breakpoint is invalid.
@if (map-has-key($breakpoints, $upper) == false) {
// Log a warning.
@warn 'Your upper breakpoint was invalid: #{$upper}.';
}
}
}
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