Uploaded September 2016 | Updated September 2026, 2 hours ago
As browsers have established themselves a critical piece of computer software, the expectations placed on them have grown. (This is why your browser can now open a PDF document.) But most true web pages are still built from four fundamental building blocks: hypertext markup language (HTML), cascading style sheets (CSS), images (and other media), and JavaScript.
Credits: Talking: Geoffrey Challen (Assistant Professor, Computer Science and Engineering, University at Buffalo). Producing: Greg Bunyea (Undergraduate, Computer Science and Engineering, University at Buffalo).
Part of the internet-class.org online internet course. A blue Systems Research Group (https://blue.cse.buffalo.edu) production.
As browsers have established themselves a critical piece of computer software, the expectations placed on them have grown. (This is why your browser can now open a PDF document.) But most true web pages are still built from four fundamental building blocks: hypertext markup language (HTML), cascading style sheets (CSS), images (and other media), and JavaScript.
Credits: Talking: Geoffrey Challen (Assistant Professor, Computer Science and Engineering, University at Buffalo). Producing: Greg Bunyea (Undergraduate, Computer Science and Engineering, University at Buffalo).
Part of the internet-class.org online internet course. A blue Systems Research Group (https://blue.cse.buffalo.edu) production.










