Dead simple SVG library.
Less than 1k gzipped and minified.
Use it like this:
var paper = new Savage('#svg', 400, 711);
var circle = paper.draw('circle', {
cx: 100, cy: 200, r: 50, fill: '#6baf7d'
});
var circle = paper.circle({
cx: 50, cy: 200, r: 44, fill: '#abffdd'
}).attr({
'stroke-width': '6px'
}).attr({
stroke: '#6baf7d'
});