After learning the basics of HTML, including tag and document structure, you might be wondering what else is available to use to build out full webpages. How do you display an image? How do you add a readable list of topics? How do you link page elements beyond text? Now you're ready to explore these fundamental tools. Here's a high-level overview before you dive into practicing with the labs.
When we want to present a list of items in a clear, readable format, we turn to
the HTML unordered list, represented by the the
<ul> <li>One item</li> <li>Another item</li> </ul>
If it's important to distinguish a particular order of the items (as for a
recipe or ranking), we use an ordered list, or the
<ol> <li>First item</li> <li>Second item</li> </ol>
Notice the nesting of our items within the lists. Each
li is a list item
contained in the larger
Another type of list we can use is a definition list, which defines specific types of items.
<dl> <dt>First term</dt> <dd>Term definition</dd> </dl>
To include an image in our page, we use an
<img src="myimage.jpg" alt="Alternative Text" title="Display Title" width="800" height="600">
There are two notable things about the
img tag. The first is that it has no
closing tag. This tag closes itself. Secondly, it handles a lot of attributes.
alt attribute provides descriptive text the browser can display if it
can't find the image file. The browser can also display the
title text to give
the user more information about the image. The
define the size of the image that shows up in the browser.
You might be familiar with basic link structure already, but here are other ways we can power them up.
We begin with a standard text hyperlink.
<a href="http://example.com/">This is a link</a>
What if we want to link an image instead of text? We can replace the text within
a tags with our image tag.
<a href="http://example.com/"> <img src="myimage.jpg" alt="Alternative Text"> </a>
Or what if we want a link that will direct to an email address?
<a href="mailto:firstname.lastname@example.org">Send an email</a>
Sometimes we might want to link to another, specific location on the same webpage. We can then target an element that we identified or classified earlier.
<p id="tips">Useful Tips Section</p> <a href="#tips">Jump to the Useful Tips Section</a>
When considering what location links point to, you will choose between relative or absolute links. A relative link directs to content within the same website.
<a href="about.html">This is a relative URL link</a>
An absolute link, on the other hand, links to external content and requires a fully defined URL path. This is likely the type of link you see most often.
<a href="http://example.com/">This is an absolute URL link</a>
It's easy to forget a closing HTML tag or miss a piece of punctuation when writing HTML. Fortunately, we have a tool that will check our markup for us and point out any errors. To validate our HTML, we can use the W3 HTML validator.
Now that you've taken a first look at these new HTML elements, you'll be better prepared to practice them in labs, where you'll learn more about each one and how to use it effectively.
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