Heads up! To view this whole video, sign in with your Courses account or enroll in your free 7-day trial. Sign In Enroll
Preview
Start a free Courses trial
to watch this video
Step-by-step instructions to write comments and why the DOCTYPE is important to include.
This video doesn't have any notes.
Related Discussions
Have questions about this video? Start a discussion with the community and Treehouse staff.
Sign upRelated Discussions
Have questions about this video? Start a discussion with the community and Treehouse staff.
Sign up
Now that you're familiar with HTML and
0:00
CSS as languages let's break down exactly
what you were doing.
0:02
Looking at the code you may have noticed
some grayed out text at
0:07
the top of the page.
0:11
This is called a comment.
0:12
When you run the code this line doesn't
show up anywhere in the browser.
0:14
In the HTML code, comments are created by
using a less than sign,
0:19
an exclamation point and then two dashes.
0:24
You close a comment by putting two dashes
and then a greater than sign.
0:27
Comments are used to put thought or
0:32
explanation into your code for you and
others to understand what's going on.
0:34
Below that you'll see the doc type, or
document type.
0:39
The doc type tells the browser what kind
of document it is, and
0:42
in our case it's plain HTML.
0:46
Including the doc type in the document
ensures that the browser makes
0:49
the best effort to follow the list of
instructions you've created.
0:53
While you were coding you might have
noticed that this attribute is
0:57
not necessary to run you code.
1:00
However, it's good practice and should be
the first thing on an HTML document.
1:02
Next you will notice an opening HTML tag.
1:07
This is a good time to introduce you to
the idea of tags.
1:11
HTML uses tags, which you can think about
as instructions that have
1:15
angle brackets around them, such as
comments or paragraphs.
1:19
When writing tags into your code, be sure
the opening tag has two angle brackets and
1:24
the closing tag has a slash after the
first angle bracket.
1:29
Now that you've learned how to set up your
HTML page and use comments to help you and
1:33
other coders know what's going on inside
your code,
1:39
let's take a quick code challenge on
starting an HTML document and
1:42
a short quiz to make sure you're following
along.
1:45
You need to sign up for Treehouse in order to download course files.
Sign upYou need to sign up for Treehouse in order to set up Workspace
Sign up