Argthtjtr

In Bootstrap 3 I use this:

.something {

    padding: 5px;

    @media screen and (min-width: $screen-sm-min) { 

        padding: 20px;

    }

    @media screen and (min-width: $screen-md-min) { 

        padding: 40px;

    }

}

How can I do the same thing in Boostrap 4-alpha? I can't find an example in their docs.
This is in variables.scss

$grid-breakpoints: (

  xs: 0,

  sm: 576px,

  md: 768px,

  lg: 992px,

  xl: 1200px

) !default;

@include _assert-ascending($grid-breakpoints, "$grid-breakpoints");

@include _assert-starts-at-zero($grid-breakpoints);

Use breakpoint mixins like this:

.something {

    padding: 5px;

    @include media-breakpoint-up(sm) { 

        padding: 20px;

    }

    @include media-breakpoint-up(md) { 

        padding: 40px;

    }

}

v4 breakpoints reference

v4 alpha6 breakpoints reference

Below full options and values.

Breakpoint & up (toggle on value and above):

@include media-breakpoint-up(xs) { ... }

@include media-breakpoint-up(sm) { ... }

@include media-breakpoint-up(md) { ... }

@include media-breakpoint-up(lg) { ... }

@include media-breakpoint-up(xl) { ... }

breakpoint & up values:

// Extra small devices (portrait phones, less than 576px)

// No media query since this is the default in Bootstrap



// Small devices (landscape phones, 576px and up)

@media (min-width: 576px) { ... }



// Medium devices (tablets, 768px and up)

@media (min-width: 768px) { ... }



// Large devices (desktops, 992px and up)

@media (min-width: 992px) { ... }



// Extra large devices (large desktops, 1200px and up)

@media (min-width: 1200px) { ... }

breakpoint & down (toggle on value and down):

@include media-breakpoint-down(xs) { ... }

@include media-breakpoint-down(sm) { ... }

@include media-breakpoint-down(md) { ... }

@include media-breakpoint-down(lg) { ... }

breakpoint & down values:

// Extra small devices (portrait phones, less than 576px)

@media (max-width: 575px) { ... }



// Small devices (landscape phones, less than 768px)

@media (max-width: 767px) { ... }



// Medium devices (tablets, less than 992px)

@media (max-width: 991px) { ... }



// Large devices (desktops, less than 1200px)

@media (max-width: 1199px) { ... }



// Extra large devices (large desktops)

// No media query since the extra-large breakpoint has no upper bound on its width

breakpoint only:

@include media-breakpoint-only(xs) { ... }

@include media-breakpoint-only(sm) { ... }

@include media-breakpoint-only(md) { ... }

@include media-breakpoint-only(lg) { ... }

@include media-breakpoint-only(xl) { ... }

breakpoint only values (toggle in between values only):

// Extra small devices (portrait phones, less than 576px)

@media (max-width: 575px) { ... }



// Small devices (landscape phones, 576px and up)

@media (min-width: 576px) and (max-width: 767px) { ... }



// Medium devices (tablets, 768px and up)

@media (min-width: 768px) and (max-width: 991px) { ... }



// Large devices (desktops, 992px and up)

@media (min-width: 992px) and (max-width: 1199px) { ... }



// Extra large devices (large desktops, 1200px and up)

@media (min-width: 1200px) { ... }

I answered a similar question here

As @Syden said, the mixins will work. Another option is using SASS map-get like this..

@media (min-width: map-get($grid-breakpoints, sm)){

  .something {

    padding: 10px;

   }

}



@media (min-width: map-get($grid-breakpoints, md)){

  .something {

    padding: 20px;

   }

}

http://www.codeply.com/go/0TU586QNlV