Can breakpoints in pixels be set using syntax like "@include media-breakpoint-up(900px)" in Bootstrap 4?

Is it possible to create a media query using

@include media-breakpoint-up(900px)
in Bootstrap 4?

For example, if I have the following code:

@include media-breakpoint-up(900px){
   body: border 2px solid;
}

Will the output in the .css file be without the media query -> similar to this

Or is it necessary to create a new breakpoint like this:

$grid-breakpoints: (
    // default breakpoints

    custom-lg: 90px,
);

And then use it like so:

@include media-breakpoint-up(custom-lg){
   body: border 2px solid;
}

Answer №1

Upon examining the media-breakpoint-up mixin, it becomes clear that it requires the $name parameter to be a breakpoint name, rather than a pixel value.

@mixin media-breakpoint-up($name, $breakpoints: $grid-breakpoints) {
    ...
}

However, you have the option to provide an alternative $breakpoints map (the 2nd parameter) with a new value for lg...

@include media-breakpoint-up(lg, (lg: 900px)) {
   body { 
       border: solid red 2px;
   }
}

Codeply

Related: Bootstrap 4 Change Breakpoints

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