Is there any library or easy solution to render SVGs using CSS (CSS3?)
With CSS you can draw things, but it's easier to do that using easy tools like Inkscape to create the svg, then convert it to CSS. Here is an exemple of CSS logo : Check this link
The first use of this is rendering high quality graphics even in old browsers which supports CSS but not SVG (Android 2.2, 2.3, ..., iPhone browser, ..) CSS graphics also have accelerated rendering more than SVG.