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BRIAN: So this concludes
the web programming track.

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We first took a look at how it is
that computers and other devices

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are able to communicate with one another
over the internet using protocols

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like HTTP, TCP, and IP.

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Then we were able to
create our first web

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pages using each HTML to describe
the structure of a web page,

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of the heading from the text and the
lists and the images and the tables

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and more.

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Then using a language
called CSS, we were

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able to add style to
our web pages, adding

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custom fonts and colors and sizes
and other style properties as well.

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Using JavaScript, we could make
our pages more interactive,

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writing code that manipulated the
DOM, the Document Object Model, that

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describe the structure of our web page
in order to add things to our web page,

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remove things from our web
page, or manipulate that web

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page as the user interacts with it.

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Then we built our very
own web server using

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a Python web framework called Flask that
let us create a web application that

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generated dynamic HTML.

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And then we were able to connect
that web application with a database

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to allow us to read and
write data, and create

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all the more interesting and powerful
web applications in the processes.

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And all of this are just
the basic building blocks

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of how to build web applications.

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And there's so much more to explore.

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So if you're interested, look
around for other HTML elements

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you could add to your
page, other CSS properties

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you could use to style your page,
other features of JavaScript and Flask

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that you can use in order to make
your own web applications that

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are interesting and exciting to you.

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My name is Brian, and this is CS50.

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