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Displaying relative values with meter

From: HTML Essential Training (2012)

Video: Displaying relative values with meter

HTML5 provides a new element for displaying static value in a range. The meter element is currently supported by the Google Chrome browser and will soon also be supported by Safari 6.0, when that comes out within the next few weeks as I've recorded this. Let's go ahead and make a working copy of meter.html, and we'll open this in our text editor. And you can see normal, HTML document, and it has a few of these meter elements in it. And I've gone ahead and filled in all the attributes on those, but these first couple are very, very simple.

Displaying relative values with meter

HTML5 provides a new element for displaying static value in a range. The meter element is currently supported by the Google Chrome browser and will soon also be supported by Safari 6.0, when that comes out within the next few weeks as I've recorded this. Let's go ahead and make a working copy of meter.html, and we'll open this in our text editor. And you can see normal, HTML document, and it has a few of these meter elements in it. And I've gone ahead and filled in all the attributes on those, but these first couple are very, very simple.

You can do it with just a value, or you can have minimum or maximum or give it a range in a value. And I'm going to show you what these look like in the browser. I'm going to go ahead and open it in Google Chrome, and there is the first two. Notice we have 2 out of 10, right. So it's got a minimum of 0, a maximum of 10, and the value of 2, and so the meter is actually just 20% filled up. The next one says .6, so that's 60%. And then these here, these are the ones with a value. They have minimum of 0, maximum of 100.

They're all the same. Low of 10, high of 80, optimum of 47. And I've styled them to be 400 pixels wide, so this is kind of how you'll normally do this. And they have these values, and I've displayed the values in text after so you can see what they are. 9 is less than that low value, so you see it comes up amber. 32, 47, and 80 are all within that range of 10 to 80, which is the low and high. You notice that 47 is optimum, and that attribute is not really changing the display here in Google Chrome. And then these other ones are outside of the range. You have 81, which is higher than 80, so it shows up amber, and then 100, 101, 110, those all show up the same, and they're really out of bound altogether.

Well, 100 is the maximum value, but the other ones are higher than the maximum, and so those are all showing up as amber. I wanted to also show you what this looks like in Firefox, which does not support this particular feature, and you notice that it just shows the text. 2 out of 10, 60%, this is the text that is inside of the container. This is the content of the meter element. 2 out of 10, 60 and then if we scroll over here, we have 9 of 100, 32 of 100 like that. And so these are all just displaying what's inside of the element.

Most browsers will display what's inside of an element, even if that element is not supported by the browser. So they won't do the function that that element is designed to do, but they'll show you the text as like an alternative text. And so by putting values inside of that, you're basically giving alternative content to browsers that don't support the feature. The use of the meter element is not recommended for a progress meter; there's a progress element provided for that purpose, and we'll discuss that in the next movie.

Show transcript

This video is part of

Image for HTML Essential Training (2012)
HTML Essential Training (2012)

82 video lessons · 104234 viewers

Bill Weinman
Author

 
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  1. 5m 24s
    1. Welcome
      56s
    2. Using the exercise files
      1m 37s
    3. What you need to know about this course
      2m 51s
  2. 22m 0s
    1. What is HTML?
      4m 12s
    2. Examining the structure of an HTML document
      7m 50s
    3. Understanding tags and containers
      6m 4s
    4. Exploring content models in HTML5
      2m 23s
    5. Looking at obsolete elements
      1m 31s
  3. 27m 19s
    1. Understanding whitespace and comments
      3m 53s
    2. Displaying text with paragraphs
      3m 37s
    3. Applying style
      8m 5s
    4. Using block and inline tags
      6m 34s
    5. Displaying characters with references
      5m 10s
  4. 16m 36s
    1. Exploring the front matter of HTML
      2m 9s
    2. Applying CSS to your document
      3m 59s
    3. Adding scripting elements
      4m 54s
    4. Using the meta tag
      3m 34s
    5. Optimizing your page for search engines
      2m 0s
  5. 24m 59s
    1. Controlling line breaks and spaces
      2m 46s
    2. Exploring phrase elements
      1m 44s
    3. Using font markup elements
      1m 5s
    4. Highlighting text with mark
      1m 29s
    5. Adding headings
      1m 38s
    6. Using quotations and quote marks
      3m 2s
    7. Exploring preformatted text
      1m 45s
    8. Formatting lists
      2m 28s
    9. Forcing text direction
      3m 49s
    10. Suggesting word-break opportunities
      2m 29s
    11. Annotating East Asian languages
      2m 44s
  6. 29m 15s
    1. Introducing CSS
      55s
    2. Understanding CSS placement
      6m 55s
    3. Exploring CSS syntax
      10m 34s
    4. Understanding CSS units of measure
      3m 3s
    5. Some CSS examples
      7m 48s
  7. 22m 5s
    1. Using images
      4m 13s
    2. Flowing text around an image
      4m 55s
    3. Breaking lines around an image
      3m 3s
    4. Aligning images
      5m 25s
    5. Mapping links in an image
      4m 29s
  8. 22m 28s
    1. Understanding URLs
      2m 41s
    2. Working with hyperlinks
      3m 28s
    3. Using relative URLs
      4m 20s
    4. Specifying a base URL
      2m 19s
    5. Linking within a page
      4m 12s
    6. Using image links
      5m 28s
  9. 17m 2s
    1. Exploring list types
      3m 52s
    2. List elements in depth
      7m 44s
    3. Using text menus with unordered lists
      5m 26s
  10. 15m 30s
    1. Introduction to HTML semantics
      4m 9s
    2. Exploring an example
      4m 56s
    3. Marking up figures and illustrations
      2m 33s
    4. Creating collapsible details
      3m 52s
  11. 11m 18s
    1. Embedding audio
      5m 19s
    2. Embedding video
      5m 59s
  12. 11m 53s
    1. Creating ad-hoc Document Object Model (DOM) data with the data-* attribute
      4m 53s
    2. Displaying relative values with meter
      2m 57s
    3. Creating dynamic progress indicators
      4m 3s
  13. 4m 49s
    1. Overview of HTML5 microdata
      1m 8s
    2. Exploring an example with microdata
      3m 41s
  14. 7m 3s
    1. Understanding outlines
      52s
    2. A demonstration of outlining
      6m 11s
  15. 13m 1s
    1. Table basics
      7m 29s
    2. Exploring the semantic parts of a table
      2m 32s
    3. Grouping columns
      3m 0s
  16. 9m 55s
    1. Frames overview
      54s
    2. Using traditional frames
      4m 26s
    3. Exploring inline frames using iframe
      2m 7s
    4. Simulating frames with CSS
      2m 28s
  17. 53m 7s
    1. Introducing forms
      10m 24s
    2. Using text elements
      10m 12s
    3. Using checkboxes and radio buttons
      2m 37s
    4. Creating selection lists and dropdown lists
      5m 14s
    5. Submit and button elements
      8m 48s
    6. Using an image as a submit button
      2m 15s
    7. Keeping context with the hidden element
      3m 0s
    8. Setting tab order
      2m 7s
    9. Preloading an autocomplete list using the datalist feature
      5m 26s
    10. Displaying results with output
      3m 4s
  18. 19m 47s
    1. Touring a complete site
      2m 14s
    2. Touring the HTML
      8m 44s
    3. Touring the CSS
      8m 49s
  19. 29s
    1. Goodbye
      29s

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