Fig 3. Number of CSS3 papers by productivity class and discipline.
Male researchers = straight line, female researchers = dotted line; Lines connect the data points of the seven productivity classes.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.