SB-Media

A dead-simple way to do module-based media queries and styles.

How it works

The two files no-mq.scss and mq.scss generate two separate stylesheets, one for browsers that do not support Media Queries and one for browsers that do. These files are then included in the index.html file using conditional comments to specify which file gets served to which browsers.

index.html

<!--[if (lt IE 9) & (!IEMobile)]>
  <link href="c/no-mq.css" rel="stylesheet">
<![endif]-->

<!--[if (gte IE 9) | (IEMobile)]><!-->
  <link href="c/mq.css" rel="stylesheet">
<!--<![endif]-->

The mixin

_sb-media.scss

$no-mq-support: false !default;
$serve-to-nomq-max-width:60em;

@mixin sb-media($query) {
  @if $no-mq-support{
    @if $query < $serve-to-nomq-max-width{
      @content;
    }
  } @else {
    @media ( 'min-width:' + $query ) {
      @content;
    }
  }
}

The mixin is pretty straightforward. It defaults to min-width media queries and does not support no-mq browsers. To support no-mq browsers, simply add $no-mq-support: true; in your no-mq.scss file and import the rest of your project like normal.

The $no-mq-threshold hides media queries over a certain value from no-mq browsers. In the mixin above it's set to 60em, or 960px. Any media queries over 60ems will get dropped from no-mq.css

Example

Here is a default min-width media query. Notice no need to pass min or max-width on the query. Just pass the width value.

_primary.scss

body{
  background-color:red;

  @include sb-media(40em){
    background-color: blue;
  }
}

The generated min-width css is below.

no-mq.css

body {
  background-color: red;
  background-color: blue;
}

mq.css

body {
  background-color: red;
}
@media (min-width: 40em) {
  body {
    background-color: blue;
  }
}