postcss-utilities/test/margin.css

PostCSS plugin to add a collection of mixins, shortcuts, helpers and tools for your CSS

.one {
    float: left;
    @util margin(1em);
    color: #fff;
}

.two {
    @util margin(20px 10%);
}

.three {
    @util margin(20px 10% 1em);
}

.four {
    @util margin(20px null 10% 1em);
}

.four-equals {
    @util margin(1em 1em 1em 1em);
}