need help with cgi/c++

[Dy7SLyTq]

so i want to make a terminal for my website and BHXSpectre recommended cgi (which i love... btw so thanks for that... c++ web design. just one more reason to not use any other language). anyways, im wondering how would i generate the html for the base of the terminal? ie just the window that i will be writing to

[Willieoem]

i have no any Idea...

[Dy7SLyTq]

then why post?