=fontface($name, $path, $weight: normal, $style: normal)
font-family: $name
src: url('#{$path}.eot')
src: url('#{$path}.eot?#iefix') format("embedded-opentype"), url('#{$path}.woff') format("woff"), url('#{$path}.ttf') format("truetype")
font-weight: $weight
font-style: $style
.xxx
+fontface('xxx', 'xxx/xxx-webfont')
font-family: 'xxx'