Online Elementary cellular automata in vanilla Javascript+AdGrid, uses jsdelivr to serve JavaScript from github.
Supply initial configuration for CA and parse wolfram rule, after which give this application a spin.
ElementaryCA@Github
Click on initial rows 0 to change it to 1, and 1 to 0 respective to give starting configuration.
Consider this as 1-finite automaton, ie invisible symbols to the left and right of configuration are always 0
Wolfram rule(0-255):