How do I learn to code in HTML and CSS on my Mac? Web design is one of the most useful skills you can learn, and it’s easy to learn HTML and CSS (the two main pillars of web pages) in Mac OS X ...

Note: For the purposes of this lesson, you should save all the files you create in your text editor with .html as your file extension—for example, "my_first_web_page.html".

To create a Web page that collects user information, you design a Web form made of HTML code. The form displays a set of questions and text boxes in the user's Web browser.

Go to the website where you'd like to place the "Donate" button. Go into the HTML for the website, then press "Ctrl-V" to paste the HTML code into the location where you'd like the button to appear.

For example, Xara Web Designer starts at $13.99 per month and promises you don't need to know HTML or Javascript to create sites based on the company's templates.

The following code snippet illustrates how you can register an asynchronous task. Note that GetDataAsync is just a method that retrieves data from some data source, say by using plain ADO.Net.