Lesson 7 : HTML Paragraphs

HTML documents are divided into paragraphs.

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HTML Paragraphs

Paragraphs are defined with the <p> tag.

<p>This is a paragraph</p>
<p>This is another paragraph</p>

Note: Browsers automatically add an empty line before and after a paragraph.

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Don't Forget the End Tag

Most browsers will display HTML correctly even if you forget the end tag:

<p>This is a paragraph
<p>This is another paragraph

The example above will work in most browsers, but don't rely on it. Forgetting the end tag can produce unexpected results or errors.

Note: Future version of HTML will not allow you to skip end tags.

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HTML Line Breaks

Use the <br /> tag if you want a line break (a new line) without starting a new paragraph:

<p>This is<br />a para<br />graph with line breaks</p>

The <br /> element is an empty HTML element. It has no end tag.

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<br> or <br />

In XHTML, XML, elements with no end tag (closing tag) are not allowed.

Even if <br> works in all browsers, writing <br /> instead works better in XHTML and XML applications.

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HTML Output - Useful Tips

You cannot be sure how HTML will be displayed. Large or small screens, and resized windows will create different results.

With HTML, you cannot change the output by adding extra spaces or extra lines in your HTML code.

The browser will remove extra spaces and extra lines when the page is displayed. Any number of lines count as one line, and any number of spaces count as one space.

Lesson 6 : HTML Headings

Headings are important in HTML documents.

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HTML Headings

Headings are defined with the <h1> to <h6> tags.

<h1> defines the most important heading. <h6> defines the least important heading.

<h1>This is a heading</h1>
<h2>This is a heading</h2>
<h3>This is a heading</h3>

Note: Browsers automatically add some empty space (a margin) before and after each heading.

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Headings Are Important

Use HTML headings for headings only. Don't use headings to make text BIG or bold.

Search engines use your headings to index the structure and content of your web pages.

Since users may skim your pages by its headings, it is important to use headings to show the document structure.

H1 headings should be used as main headings, followed by H2 headings, then the less important H3 headings, and so on.

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HTML Lines

The <hr /> tag creates a horizontal line in an HTML page.

The hr element can be used to separate content:

<p>This is a paragraph</p>
<hr />
<p>This is a paragraph</p>
<hr />
<p>This is a paragraph</p>

HTML Comments

Comments can be inserted into the HTML code to make it more readable and understandable. Comments are ignored by the browser and are not displayed.

Comments are written like this:

<!-- This is a comment -->

HTML Tip - How to View HTML Source

Have you ever seen a Web page and wondered "Hey! How did they do that?"

To find out, right-click in the page and select "View Source" (IE) or "View Page Source" (Firefox), or similar for other browsers. This will open a window containing the HTML code of the page.

Lesson 4 : HTML Elements

HTML Elements

An HTML element is everything from the start tag to the end tag:

     <p> This is paragraph </p>
     <a href="default.html"> This is link </a>
     </br>

* The start tag is often called the opening tag. The end tag is often called the closing tag.

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HTML Element Syntax

• An HTML element starts with a start tag / opening tag
• An HTML element ends with an end tag / closing tag
• The element content is everything between the start and the end tag
• Some HTML elements have empty content
• Empty elements are closed in the start tag
• Most HTML elements can have attributes

Tip: You will learn about attributes in the next chapter of this tutorial.

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Nested HTML Elements

Most HTML elements can be nested (can contain other HTML elements).

HTML documents consist of nested HTML elements.

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HTML Document Example

<html>

<body>

<p>This is my first paragraph.</p>

</body>

</html>

The example above contains 3 HTML elements.

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HTML Example Explained

The <p> element:

<p>This is my first paragraph.</p>

The <p> element defines a paragraph in the HTML document.

The element has a start tag <p> and an end tag </p>.
The element content is: This is my first paragraph.

The <body> element:

<body>

<p>This is my first paragraph.</p>

</body>

The <body> element defines the body of the HTML document.
The element has a start tag <body> and an end tag </body>.
The element content is another HTML element (a p element).

The <html> element:

<html>

<body>

<p>This is my first paragraph.</p>

</body>

</html>

The <html> element defines the whole HTML document.
The element has a start tag <html> and an end tag </html>.
The element content is another HTML element (the body element).

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Don't Forget the End Tag

Some HTML elements might display correctly even if you forget the end tag:

<p>This is a paragraph

<p>This is a paragraph

The example above works in most browsers, because the closing tag is considered optional.

Never rely on this. Many HTML elements will produce unexpected results and/or errors if you forget the end tag .

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Empty HTML Elements

HTML elements with no content are called empty elements.

<br> is an empty element without a closing tag (the <br> tag defines a line break).

Tip: In XHTML, all elements must be closed. Adding a slash inside the start tag, like <br />, is the proper way of closing empty elements in XHTML (and XML).

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HTML Tip: Use Lowercase Tags

HTML tags are not case sensitive: <P> means the same as <p>. Many web sites use uppercase HTML tags.

W3Schools use lowercase tags because the World Wide Web Consortium (W3C) recommendslowercase in HTML 4, and demands lowercase tags in XHTML.

Lesson 3 : HTML Basic

HTML Headings

HTML headings are defined with the <h1> to <h6> tags.

<h1>This is a heading</h1>
<h2>This is a heading</h2>
<h3>This is a heading</h3>

HTML Paragraphs

HTML paragraphs are defined with the <p> tag.

<p>This is a paragraph.</p>
<p>This is another paragraph.</p>

HTML Links

HTML links are defined with the <a> tag.

<a href="http://www.w3schools.com">This is a link</a>

Note: The link address is specified in the href attribute.

HTML Images

HTML images are defined with the <img> tag.

<img src="w3schools.jpg" width="104" height="142" />

Note: The name and the size of the image are provided as attributes.