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Dreamweaver CS5 Essential Training

Using thead and tbody tags


From:

Dreamweaver CS5 Essential Training

with James Williamson

Video: Using thead and tbody tags

The thead and tbody tags allow you to structure your tables into logical areas. Much like the div tag does for your HTML content. As a general rule, column headers will go into the thead element while the rest of the table resides in the tbody tag. There is also a tfoot element used to create table footers. The tfoot and thead tags are optional, but if you use one, you must include the tbody tag. So we have our bigsur_trails.htm file open and as you can see from our table we've gone back to having that sort of unstyled mess that we have here, but we've got all that additional structure that we added a little while ago that's going to make our table more accessible.
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  1. 2m 57s
    1. Welcome
      1m 8s
    2. Using the exercise files
      1m 49s
  2. 7m 50s
    1. What is Dreamweaver?
      3m 16s
    2. Learning web design
      2m 22s
    3. Current web standards
      2m 12s
  3. 43m 9s
    1. The Welcome screen
      4m 5s
    2. Windows and Mac interface differences
      2m 23s
    3. The Application toolbar
      4m 7s
    4. The Document toolbar
      4m 40s
    5. Arranging panels
      8m 19s
    6. Managing workspaces
      7m 32s
    7. The Properties Inspector
      5m 54s
    8. The Insert panel
      6m 9s
  4. 25m 45s
    1. Basic site structure
      3m 11s
    2. File naming conventions
      1m 49s
    3. Defining a new site
      4m 35s
    4. Managing sites
      4m 51s
    5. Managing files and folders
      6m 36s
    6. Working with browsers
      4m 43s
  5. 27m 21s
    1. Creating new documents
      5m 16s
    2. New document preferences
      3m 6s
    3. Setting accessibility preferences
      4m 56s
    4. Working with starter pages
      3m 46s
    5. Managing starter pages
      10m 17s
  6. 30m 2s
    1. Basic tag structure
      2m 15s
    2. Adding structure to text
      8m 20s
    3. Creating lists
      9m 59s
    4. Getting text into Dreamweaver
      5m 59s
    5. Importing Word documents
      3m 29s
  7. 1h 17m
    1. Understanding style sheets
      2m 16s
    2. The anatomy of a CSS rule
      1m 48s
    3. Setting CSS preferences
      6m 36s
    4. The CSS Styles panel
      10m 2s
    5. Controlling CSS through the Properties Inspector
      5m 14s
    6. Using the Code Navigator
      7m 21s
    7. Using CSS Enable
      6m 45s
    8. Understanding element selectors
      8m 11s
    9. Understanding class selectors
      8m 49s
    10. Understanding ID selectors
      5m 59s
    11. Understanding descendant selectors
      6m 51s
    12. Attaching external style sheets
      7m 44s
  8. 1h 47m
    1. Working with units of measurement
      7m 11s
    2. Declaring font families
      9m 39s
    3. Controlling font sizing
      9m 9s
    4. Controlling weight and style
      8m 0s
    5. Controlling line height
      8m 29s
    6. Controlling vertical spacing with margins
      12m 3s
    7. Controlling spacing with padding
      5m 39s
    8. Aligning text
      8m 26s
    9. Transforming text
      5m 36s
    10. Writing global styles
      15m 42s
    11. Writing targeted styles
      17m 37s
  9. 1h 32m
    1. Understanding image types
      5m 3s
    2. Managing assets in Dreamweaver
      12m 51s
    3. Setting image accessibility preferences
      4m 20s
    4. Setting external image editing preferences
      3m 52s
    5. Placing images on the page
      7m 37s
    6. Photoshop integration
      5m 54s
    7. Modifying Smart Objects
      5m 51s
    8. Alternate Photoshop workflows
      8m 8s
    9. Modifying image properties
      11m 14s
    10. Styling images with CSS
      7m 11s
    11. Using background graphics
      9m 3s
    12. Positioning background graphics
      11m 6s
  10. 55m 16s
    1. Link basics
      3m 37s
    2. Setting site linking preferences
      2m 14s
    3. Creating links in Dreamweaver
      11m 1s
    4. Absolute links
      5m 8s
    5. Using named anchors
      11m 19s
    6. Linking to named anchors in external files
      2m 44s
    7. Creating an email link
      5m 24s
    8. Creating CSS-based rollovers
      13m 49s
  11. 1h 34m
    1. CSS structuring basics
      2m 56s
    2. The Box Model
      13m 21s
    3. Understanding floats
      6m 53s
    4. Clearing and containing floats
      8m 56s
    5. Using relative positioning
      4m 8s
    6. Using absolute positioning
      7m 18s
    7. Creating structure with div tags
      12m 7s
    8. Styling basic structure
      10m 34s
    9. Creating a two-column layout
      10m 37s
    10. Using Live View and CSS Inspect
      7m 51s
    11. Using Browser Lab
      9m 39s
  12. 56m 22s
    1. Reviewing table structure
      7m 41s
    2. Importing tabular data
      5m 13s
    3. Creating accessible tables
      9m 56s
    4. Using thead and tbody tags
      4m 0s
    5. Basic table styling
      8m 45s
    6. Styling table headers
      7m 52s
    7. Styling column groups
      4m 22s
    8. Creating custom table borders
      5m 1s
    9. Styling table captions
      3m 32s
  13. 1h 43m
    1. How forms work
      3m 0s
    2. Reviewing form design
      3m 2s
    3. Creating accessible forms
      7m 33s
    4. Setting form properties
      4m 6s
    5. The fieldset and legend tags
      4m 32s
    6. Inserting text fields
      5m 58s
    7. Inserting list menu items
      5m 26s
    8. Inserting checkboxes
      7m 50s
    9. Inserting radio button groups
      6m 22s
    10. Inserting text areas
      4m 12s
    11. Inserting submit buttons
      3m 37s
    12. Basic form styling
      12m 0s
    13. Form element styling
      8m 52s
    14. Styling form layout
      11m 49s
    15. Adding form interactivity
      2m 47s
    16. Using Spry validation widgets
      12m 49s
  14. 1h 23m
    1. Planning for templates
      10m 51s
    2. Creating a new template
      10m 37s
    3. Using editable attributes
      13m 43s
    4. Creating optional regions
      6m 23s
    5. Creating new pages from a template
      9m 17s
    6. Applying templates to existing pages
      6m 9s
    7. Working with nested templates
      7m 56s
    8. Working with repeating regions
      12m 58s
    9. Modifying templates
      5m 41s
  15. 40m 14s
    1. Behaviors overview
      3m 47s
    2. Hiding and showing elements
      9m 18s
    3. Spry overview
      4m 4s
    4. Using Spry widgets
      11m 36s
    5. Adding Spry effects
      3m 6s
    6. Using the Widget Browser
      8m 23s
  16. 28m 18s
    1. Inserting Flash files
      5m 4s
    2. Setting properties for Flash
      6m 27s
    3. Dreamweaver and Flash integration
      6m 6s
    4. Encoding Flash video
      6m 10s
    5. Adding Flash video
      4m 31s
  17. 45m 28s
    1. Running site-wide reports
      6m 33s
    2. Checking for broken links
      5m 41s
    3. Checking for browser compatibility
      8m 3s
    4. Adding remote servers
      8m 0s
    5. Uploading files
      7m 20s
    6. Managing remote sites
      9m 51s
  18. 34s
    1. Goodbye
      34s

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Dreamweaver CS5 Essential Training
15h 22m Beginner Apr 30, 2010

Viewers: in countries Watching now:

In Dreamweaver CS5 Essential Training, Adobe Certified Instructor James Williamson explores the tools and techniques of Dreamweaver CS5, Adobe's web design and development software. This course covers both the ins and outs of Dreamweaver, as well as recommended best practices for crafting new web sites and files, the fundamentals of HTML and CSS, and how to ensure clean and accessible code. The course also includes how to use tools in Dreamweaver to create and style web pages, manage multiple sites, and add user interactivity with widgets and scripting. Exercise files are included with the course.

Topics include:
  • Defining and structuring a new site
  • Creating new web documents from scratch or from templates
  • Adding and formatting text
  • Understanding style sheet basics
  • Placing and styling images
  • Creating links to internal pages and external web sites
  • Controlling page layout with CSS
  • Building and styling forms
  • Reusing web content with templates
  • Adding interactivity
  • Working with Flash and video
Subject:
Web
Software:
Dreamweaver
Author:
James Williamson

Using thead and tbody tags

The thead and tbody tags allow you to structure your tables into logical areas. Much like the div tag does for your HTML content. As a general rule, column headers will go into the thead element while the rest of the table resides in the tbody tag. There is also a tfoot element used to create table footers. The tfoot and thead tags are optional, but if you use one, you must include the tbody tag. So we have our bigsur_trails.htm file open and as you can see from our table we've gone back to having that sort of unstyled mess that we have here, but we've got all that additional structure that we added a little while ago that's going to make our table more accessible.

It's also going to give us more styling hooks. Now speaking of that, the thead and the tbody tag can really help us out with not only the styling, but also by making sure that our table data is organized correctly as well. So the best way to do this is we are going to go right back into Code View. So once again, I am going to select part of my table, switch over to Split Screen View, and that jumps right down there to my table. I can also collapse the panels down to get myself a little bit more room there, if you're finding your screen real estate starting to shrink up a bit.

Okay so here is what we need to do. The thead is going to identify the head part of the table or the heading if you will. In this table that happens to be the top row. So what I want you want to do is find the table row that's just below the column group. For me it's right here on line 56. I'm going to go ahead and highlight the entire table row starting with the opening table row tag and ending with the closing table row tag. Next I am going to go over to my Coding toolbar, you can find your Code toolbar right over here on the left-hand side.

Now depending upon your screen resolution you might see more or you might see less of the Coding toolbar. If you don't see this icon, this looks like a little tag with the pencil on it, you can get it by grabbing this little menu to show more. For me all I need is that tag. That is the Edit Tag icon, but if you already have code selected, it allows you to wrap that code in a specific tag. So I am going to go ahead and click that icon and I am going to tell Dreamweaver that I want to wrap that table row in a thead tag.

Once again, code hinting will help you out, but you just have to hit Return twice. It'll go ahead and make it edit for you. So now right after the colgroup tag, we should see an opening thead tag and then after the first closing table row tag, we should see a closing thead tag. Awesome. Now remember if you have a thead you have to have a tbody as well. So starting at line 66 for me right here, I am going to start with the next table row. I am going to scroll all the way down and highlight the remainder of my table.

Now I don't want the closing table tag. I only want to highlight table rows individually, so that's something you are going to want to double-check. That you've got the opening table row tag just underneath the th tag and then you have the closing table row tag just before the closing table tag. Once again, I am going to use the Edit Tag icon to wrap this and this time in a tbody tag. So no space there, just tbody. I'll hit Return and Dreamweaver will go ahead and wrap that for me. So now I have a thead and I also have a tbody tag surrounding and identifying different areas in my table.

Now other than helping us with code hinting, Dreamweaver doesn't really offer any automatic ways to thead and tbody elements to your table structure. You're going to have to do those by hand. While they obviously add a little bit more time to the process of building tables, the gains from the additional structure is well worth it. This is especially true for longer tables where the body of the table can be broken up by using multiple tbody elements. This can assist in the printing and scrolling of longer table data.

Find answers to the most frequently asked questions about Dreamweaver CS5 Essential Training.


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Q: After creating a website following the instructions in the course, the header background graphic appears correctly in all browsers except Internet Explorer 6 and Internet Explorer 7.  The graphic works properly in IE 8. What can be done to make the graphics appear in IE 6 and IE 7?
A: To make the header background graphic appear, wrap the header div tag in another div tag and give it an ID like “mainHeader.” The problem stems from a bug in Internet Explorer that prevents the browser from dealing with absolutely positioned elements that are right next to relatively positioned elements.  Following the steps above should solve the problem.
Q: In the tutorial, the author links the Tool Tip to the word "More" at the bottom of the thumbnail photo field. I can't figure out how to place the <a> "More" on the thumbnail photo field.
A: In the example, there is a paragraph that wraps an <img> tag and the word "More," which is surrounded by an anchor tag (<a>). The author uses CSS to make sure the parent div tag of the thumbs floats to the left, and is only wide enough for the image. This causes the link text to break down onto another line. Then, the instructor uses CSS to align the link text to the right of the <img>. The link itself is a void JavaScript function, ( javascript();). This gives you a "dummy" link without returning you to the top of the page as the "#" dummy link tends to do.
If you were manually typing the text in, you could select the image, hit the right arrow button, and begin typing. The text should then appear on screen.
Q: In this movie, you are making changes to the HTML in order to customize the text layout on your page (i.e. h1, h2, and h3 tags as well as strong and em tags). I'm wondering why you are not using CSS to do this (i.e. font-size, font-weight). Do you typically use one method, or is it customary to do use both in a layout, and if so, what guidelines would you suggest to determine which to use when?
A: We modify the page's structure through the use of h1, h2, and other heading tags. So when we are choosing heading levels, we're not concerning ourselves with typography; we're establishing page structure. A heading is chosen to denote the level of importance for the heading, not typography.
CSS should always be used for presentation, not HTML.
Q: In the “Understanding ID selectors” movie, the author states that only one ID tag can be used per page, but then he adds two ID tags. Can you please clarify this for me?
A: You can use as many IDs per page as you wish. They just must all use a unique name. Therefore if you assign an element the ID of "header" no other element on THAT page may use the same ID.
Q: I noticed that in this course, the instructor uses this code on his CSS external sheet: @charset "UTF-8"; I was under the impression that this code wasn't necessary. The W3.org site is unclear on the matter. Is it necessary? Is it a best practice? Is it an older form of CSS?
A: The characterset attribute is added automatically by Dreamweaver, and there’s no practical reason to remove it. While it's not needed (the HTML page should indicate which encoding to use for the page) it is helpful if the CSS file is ever imported or used on a page where the characterset isn't specified. Think of it as a safety net for characterset encoding. Not necessary, but not harmful either.
Q: I need to add captions below images that I insert in pages of text. I played all the lessons in Chapter 5 (Adding Text and Structure) but none dealt with captions. I hope the author has an answer or can refer me to a source.
A: In HTML 4 and XHTML 1 (which is what Dreamweaver CS5 uses by default), there wasn't really a way to add captions below your photos. Most web authors would "fake" captions by having paragraphs of text below their images and using CSS to position and style the captions in the desired manner. Many would use a class such as .imgCaption to control the styling. To do this you would essentially position the text underneath the image through CSS (often by grouping the image and the paragraph in a div tag) and italicizing the text.

However in HTML5, there are new elements that allow us to associate images and their captions, the figure and figcaption element. Our author James Williamson just finished a course on HTML5: Syntax, Structure, and Semantics which details how to use it.

HTML5 Doctor also has a nice article on the figure and figcaption elements at http://html5doctor.com/the-figure-figcaption-elements/.
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