minions.margin-y

source on Github 
    
/*! minions.css */
.my-0{margin-top:0;margin-bottom:0}
.my-\.25e{margin-top:.25em;margin-bottom:.25em}
.my-\.5e{margin-top:.5em;margin-bottom:.5em}
.my-1e{margin-top:1em;margin-bottom:1em}
.my-2e{margin-top:2em;margin-bottom:2em}
.my-3e{margin-top:3em;margin-bottom:3em}
.my-4e{margin-top:4em;margin-bottom:4em}
.my-\.25r{margin-top:.25rem;margin-bottom:.25rem}
.my-\.5r{margin-top:.5rem;margin-bottom:.5rem}
.my-1r{margin-top:1rem;margin-bottom:1rem}
.my-2r{margin-top:2rem;margin-bottom:2rem}
.my-3r{margin-top:3rem;margin-bottom:3rem}
.my-4r{margin-top:4rem;margin-bottom:4rem}

Installation

npm

npm install minions.margin-y

browser

<link rel="stylesheet" href="https://unpkg.com/minions.margin-y" />

License

The MIT License (MIT)
Copyright (c) 2016 Michael Chan