foundation/stylus/foundation/components/labels.styl

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//
// Label Variables
//
$include-html-label-classes ?= $include-html-classes;

// We use these to style the labels
$label-padding ?= emCalc(3px) emCalc(10px) emCalc(4px);
$label-radius ?= $global-radius;

// We use these to style the label text
$label-font-sizing ?= emCalc(14px);
$label-font-weight ?= bold;
$label-font-color ?= #333;
$label-font-color-alt ?= #fff;

//
// Label Mixins
//

// We use this mixin to create a default label base.
label-base() {
  font-weight: $label-font-weight;
  text-align: center;
  text-decoration: none;
  line-height: 1;
  white-space: nowrap;
  display: inline-block;
  position: relative;
}

// We use this mixin to add label size styles.
label-size($padding=$label-padding, $text-size=$label-font-sizing) {
  if $padding { padding: $padding; }
  if $text-size { font-size: $text-size; }
}

// We use this mixin to add label styles.
label-style($bg=$primary-color, $radius=false) {

  // We control which background color comes through
  if $bg {

    // This find the lightness percentage of the background color.
    $bg-lightness = lightness($bg);

    background-color: $bg;

    // We control the text color for you based on the background color.
    if $bg-lightness < 70% {
      color: $label-font-color-alt;
    } else {
      color: $label-font-color;
    }
  }

  // We use this to control the radius on labels.
  if $radius == true {
  	radius($label-radius); 
  } else if $radius {
  	radius($radius); 
  }

}

// We use this to add close buttons to alerts
label($padding=$label-padding, $text-size=$label-font-sizing, $bg=$primary-color, $radius=false) {

  label-base();
  label-size($padding, $text-size);
  label-style($bg, $radius);
}


if $include-html-label-classes != false {

  /* Labels */
  .label {
    label-base();
    label-size();
    label-style();


    &.radius {
    	label-style(false, true); 
    }
    &.round {
    	label-style(false, $radius:1000px); 
    }

    &.alert     {
    	label-style($alert-color); 
    }
    &.success   {
    	label-style($success-color); 
    }
    &.secondary {
    	label-style($secondary-color); 
    }
  }

}