I made this, which should be fairly easy to tweak to your desired look (the svg is generated by the script): https://jsfiddle.net/4e6kw8Ls/ https://jsfiddle.net

I made this, which should be fairly easy to tweak to your desired look (the svg is generated by the script): https://jsfiddle.net/4e6kw8Ls/ https://jsfiddle.net/4e6kw8Ls/ (click to toggle zoom)