http://translate.google.com/translate?hl=es&langpair=en|es&u=http://www.russellheimlich.com/blog/pure-css-shapes-triangles-delicious-logo-and-hearts/


http://translate.google.com/translate?hl=es&langpair=en|es&u=http://www.graphviz.org/doc/info/shapes.html

http://translate.google.com/translate?hl=es&langpair=en|es&u=http://www.javascriptkit.com/howto/imagemap.shtml

gemablog-.blogspot.com/2009/09/border-radius.html