VendorPrefixMixin.css

/* Sass Code */
@mixin vendor-prefix($name, $value) { /* Copy this mixin for your own use! */
    @each $vendor in ('-webkit-', '-moz-', '-ms-', '-o-', '') {
      #{$vendor}#{$name}: #{$value};
    }
}

* {
    @include vendor-prefix('box-sizing', 'border-box');
}

/* Compiled CSS Code */
* {
	  -webkit-box-sizing: border-box;
	  -moz-box-sizing: border-box;
	  -ms-box-sizing: border-box;
	  -o-box-sizing: border-box;
	  box-sizing: border-box;
}