Medium-like, Share to Twitter popup button on text selection
bower install quoteme.js
Download it and upload it to your server and include it on your bottom of your page
<script src="https://github.com/kbariotis/quoteme.js_Unmaintained_/raw/master/path/to/bower_components/quoteme.js/dist/quoteme.min.js"></script>
Change the first two options according to your needs or leave them for the default values.
new Quoteme({
"container": ".article",
"pathToImg": "./tw.png"
});