Updating sites—HTML Notes

It’s been a while since I have looked at the code for my websites so I popped over to W3Schools to review the HTML5 standards and tested my sites in Validator. A couple of things are different and/or I never knew.

You can use either single or double quotes in tag attributes. I prefer single quotes since I often write code in HTML and then generalize it with PHP and PHP uses double quotes in echo statements.

They recommend using <html lang=”en-US”> in the header instead of just <html lang=”en”>.

The type=”text/javascript” code in no longer used in links to javascript or for inline javascript.

By default strong and b display the same on the screen but they are semantically different. <b> is a style – we know what “bold” is supposed to look like.

<strong> however is an indication of how something should be understood. “Strong” could (and often does) mean “bold” in a browser, but it could also mean a lower tone for a speaking program like Jaws (for blind people).

The abbreviation tag <abbr title=”Abbreciation name”> is useful for screen readers and search engines but it does ODD things in WORDPRESS.

Commenting HTML can be useful for debugging and is done with <!– Write your comments here –> which can span multiple lines. Keep in mind that while the browser doesn’t display comments, they are viewable in the page source. The page source displays the comments as a single line.

It turns out that there are 140 color names in HTML5.

The draggable attribute in combination with some simple javascript can be useful if you are working on interactive games. Links and images are draggable by default which explains why you can drag them to the desktop.

If you are writing a page that test spelling, you probably want to turn off spellcheck.
<p contenteditable="true" spellcheck="false">This is a paragraph that is not spell checked.</p>

I wish more websites used tabindex when designing forms. It’s especially frustrating when you tab and go to a button instead of the next input field or when you jump around on the form.

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