SCSS Bootstrap callout

_bs_callout.scss

.bs-callout {
    padding: 20px;
    margin: 20px 0;
    border: 1px solid #eee;
    border-left-width: 5px;
    border-radius: 3px;

  h4 {
    margin-top: 0;
    margin-bottom: 5px;
  }
  
  p:last-child {
    margin-bottom: 0;
  }
  
  code {
    border-radius: 3px;
  }

  +.bs-callout {
    margin-top: -5px;
  }
}

@mixin bs-callout($class, $color) {
  .bs-callout-#{$class} {
    
    border-left-color: $color;
    
    h4 {
      color: $color;
    }
  }
}