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By the end of this chapter, you should be able to:
In HTML we have quite a few ways to display and separate text. We have heading tags
h1 tags are the largest,
h6 are the smallest), paragraph tags
<p></p>, line breaks
<br> (notice that this tag does not close), and horizontal rows
<hr> (this tag does not close as well). You'll commonly see heading tags used for titles of pages and sections, while
p tags are used for larger chunks of text.
What if you don't want to write paragraphs, but instead just want to display some simple lists? To create list items in HTML, we can either use ordered lists or unordered lists:
<ol> <li>First</li> <li>Second</li> <li>Third</li> </ol> <ul> <li>Something Not Ordered</li> <li>Something Not Ordered</li> <li>Something Not Ordered</li> </ul>
By default, ordered lists will be numbered starting from 1. You can change the numbering by setting the
type attribute on the list. What do you think the ordering will look like for each of the following lists?
<ol type="A"> <li>First</li> <li>Second</li> <li>Third</li> </ol> <ol type="a"> <li>First</li> <li>Second</li> <li>Third</li> </ol> <ol type="I"> <li>First</li> <li>Second</li> <li>Third</li> </ol> <ol type="i"> <li>First</li> <li>Second</li> <li>Third</li> </ol>
In HTML there are two important tags which do not have much semantic significance, but are useful for laying out a page. These tags are
<span></span>. Both can be used to format text, but they behave differently on the page. Try pasting the following into an HTML document, and take a look at how your browser renders the text:
<div>I'm in a div.</div> <div>I'm in a div as well.</div> <span>I'm in a span.</span> <span>I'm in a span as well.</span>
What are some differences you notice? (If you need a hint, check out this article.)
To change the look of text on the page we can use tags like
<cite></cite>. Take a look at what these do!
When we want to create hyperlinks to other pages, we use an anchor tag
<a></a>. To specify what link we want to go to we use the
href attribute. For example, to add an anchor tag linking to Google, we would write something like
<a href="http://www.google.com">Go To Google!</a>
We can add images and specify their source using the
src attribute. Another important attribute for image tags is the
alt attribute which is what is displayed when the image fails to load and is very important for SEO purposes as well. It looks something like this:
<img src="http://lorempixel.com/200/200" alt="Some random 200x200 picture">
Sometimes we want to explain certain parts of our HTML, but not have it display on the page. We can put these explanations inside of comments, which will show up if someone looks at the HTML file, but won't be rendered on the page by a browser. Comments are helpful in all programming languages when we want to document our code. To add a comment in HTML, we simply include text inside of this syntax: ``. Here's an example:
<!-- Tell the reader to keep up the good work --> <h1> Well done! You made it to the end of this section! Now go and practice some HTML with the exercises below! </h1>
If you render this code in the browser, you should see that the comment doesn't show up.
When you're ready, move on to HTML Basics Exericse