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XHTML and HTML Essential Training

Using inline images


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XHTML and HTML Essential Training

with Bill Weinman

Video: Using inline images

The image tag is an inline tag in XHTML and HTML and this is essentially how it works in a paragraph. Here we have a paragraph with some text in it and an image in the middle of the text. So here is the image and you have text before it and text after it, and this is what it looks like in the paragraph. This paragraph has an image inline with it. So that is how an image is used in a paragraph like that. Let's take a look at the image tag and some of its attributes.
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  1. 5m 10s
    1. Welcome
      1m 16s
    2. Using the exercise files
      1m 23s
    3. Choosing a text editor
      2m 31s
  2. 15m 46s
    1. Introducing HTML and XHTML
      2m 53s
    2. Understanding versions of HTML and XHTML
      2m 25s
    3. Exploring a simple XHTML page
      4m 47s
    4. Understanding the structure of an XHTML document
      2m 58s
    5. Understanding document containers
      54s
    6. Creating and using templates
      1m 49s
  3. 42m 4s
    1. Understanding how empty space is formatted in XHTML
      2m 42s
    2. Using paragraph tags
      2m 42s
    3. Aligning paragraphs
      2m 49s
    4. Understanding block-level and inline tags
      1m 24s
    5. Controlling line breaks and spaces
      5m 43s
    6. Formatting text with phrase element tags
      3m 28s
    7. Formatting text with font markup elements
      3m 24s
    8. Adding document structure with headings
      3m 25s
    9. Formatting quotations and quote marks
      2m 19s
    10. Preserving pre-formatted text
      1m 30s
    11. Selecting a typeface
      4m 33s
    12. Selecting a type size
      2m 11s
    13. Using ordered and unordered lists
      5m 54s
  4. 7m 48s
    1. Using inline images
      3m 17s
    2. Flowing text around an image
      2m 4s
    3. Breaking lines around an image
      2m 27s
  5. 22m 34s
    1. Working with hyperlinks
      7m 46s
    2. Using relative URLs
      3m 5s
    3. Specifying a base URL
      2m 4s
    4. Linking within a page using fragments
      4m 28s
    5. Creating image links
      5m 11s
  6. 22m 56s
    1. Introducing tables
      4m 37s
    2. Formatting tables with CSS
      8m 50s
    3. Aligning images with tables
      5m 7s
    4. Reviewing an alternative solution using CSS
      4m 22s
  7. 14m 31s
    1. Introducing frames
      7m 56s
    2. Hiding frame borders
      3m 15s
    3. Creating inline frames using iFrame
      3m 20s
  8. 20m 50s
    1. Introducing forms: part 1
      10m 37s
    2. Introducing forms: part 2
      7m 45s
    3. Using CGI with forms
      2m 28s
  9. 25m 42s
    1. Introducing CSS
      3m 11s
    2. Understanding levels of inheritance
      6m 10s
    3. Learning CSS syntax
      11m 23s
    4. Using units of measure in CSS
      4m 58s
  10. 1h 45m
    1. Comparing table layout and CSS layout
      1m 25s
    2. Exploring the finished web site
      2m 37s
    3. Building a document header
      8m 18s
    4. Placing a banner and a contact button
      8m 13s
    5. Laying out a main menu
      6m 55s
    6. Creating a layout template: main body area
      13m 31s
    7. Creating a layout template: sidebar area
      5m 17s
    8. Creating a layout template: footer content
      4m 46s
    9. Building a main home page: main body content
      11m 24s
    10. Building a main home page: sidebar content
      8m 52s
    11. Creating a page with a menu, graphics, and formatted links
      13m 26s
    12. Creating a page containing an ordered list
      6m 44s
    13. Creating a page containing video
      10m 45s
    14. Touring the finished site
      3m 45s
  11. 53s
    1. Goodbye
      53s

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XHTML and HTML Essential Training
4h 44m Beginner Jul 28, 2009

Viewers: in countries Watching now:

In XHTML and HTML Essential Training, Bill Weinman helps designers and coders understand XHTML and HTML. In the process, Bill covers document structure, block and inline-level tags, floating images, controlling white space, phrase and font markup, and tables and frames. He even provides a good introduction to CSS. Bill offers step-by-step guidance for building a complete working web site. Exercise files accompany the course.

Topics include:
  • Understanding the structure of an HTML or XHTML document
  • Creating and using templates
  • Controlling white space and line breaks
  • Making effective use of tables and frames
  • Flowing text around an image
  • Formatting tables with CSS
  • Creating web pages that work properly across platforms and devices
  • Reviewing a case study of a complete web site
Subjects:
Developer Web Web Design Web Foundations Programming Languages Web Development
Software:
HTML XHTML
Author:
Bill Weinman

Using inline images

The image tag is an inline tag in XHTML and HTML and this is essentially how it works in a paragraph. Here we have a paragraph with some text in it and an image in the middle of the text. So here is the image and you have text before it and text after it, and this is what it looks like in the paragraph. This paragraph has an image inline with it. So that is how an image is used in a paragraph like that. Let's take a look at the image tag and some of its attributes.

Here we have the source attribute, which says lynda-24.png that's the file name of the image. It could also have an entire URL in it with the HTTP and the host name and you can even load an image off of a different host than the one where the HTML file is. We'll see examples of that later on. This is the alt attribute and this is actually required in the specification. This provides text that will be displayed in the event that the browser cannot display the image and it's also useful for circumstances where the browser is not a visual browser where it might be reading text to a blind person or something like that and so the alt tag is actually required.

There are circumstances where it may not make sense even all those things considered to have whole text in which case you can just leave it empty, you can take the text out of it and leave it empty like that or some people will omit the alt tag and even though it's technically required by the spec, it doesn't break anything to leave it out and then we have the title attribute and the title attribute is what's displayed when you hover the mouse over the image in the browser, there it says "hey! you with the mouse!" and that's what the title attribute is for. So that can be useful and I often include that and the width and the height attribute are actually not required by the spec and I wish they were.

What the width and the height attribute do is they specify the width and the height of the image for the browser. So the browser can layout the page before it loads the image. If we are going to a webpage and as the page is loading as the images are slowly coming in, the whole page is kind of moving around and making way for the images as they load up, this is what happens when you don't have the width and the height and the browser tries to layout the page and then it finds out as it goes out to load that image, oh the image is going to take this much space here and it's got to recalculate and re-layout the whole page.

So I like to always load up the width and the height attribute in the image tag and this allows the browser to know before it goes out to the server to get the actual image file. It allows it to know what the dimensions of the image are, so that it can layout the page in advance and so you get a smoother user experience because the page doesn't have to jump around. It all looks very graceful as the images load in their proper places, all laid out in the page there. So I'd like to include the width and the height attributes when I can with the image. Of course, the image tag is a standalone tag.

It's not a container. It doesn't have any content and so you will see this /> at the end just like all the standalone tags that don't have any content. This tells the XHTML that this is the end of the tag and not to expect a separate end tag. So this is sort of the pseudo end tag syntax that we see a lot with the tags that don't have the content. So this is the image tag and this is the basics of its attributes. So there are few more attributes that we'll see in later lessons as we learn to do other things with the image tag.

Find answers to the most frequently asked questions about XHTML and HTML Essential Training.


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Q: In this title, the instructor uses tables to create a website design. Is there a way to create this same layout with CSS?
A: This course will be updated to include CSS-based layout techniques within
the next few months. In the meantime, please see Bill's <a href="
http://www.lynda.com/home/DisplayCourse.aspx?lpk2=52341">CSS for
Developers</a> title for more information on coding with CSS.
Q: In the "Understanding the structure of an XHTML document" movie in Chapter 1, where does the "Roses are red," etc, text come from? I don't see it in the code.
A: Notice the <frame src="??"> tags. These reference other .html files that contain the content of the various frames. Details about how frames work can be found in Chapter 6 of the course.
Q: In this title, the instructor uses tables to create a website design. Is there a way to create this same layout with CSS?
A: This course will be updated to include CSS-based layout techniques later in 2012. In the meantime, please see Bill's CSS for Developers title for more information on coding with CSS.
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