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The Marquee Element has been deprecated by the W3C and is commonly ill-advised but nevertheless, if you really want to do it, then javascript is the way to go. We put together this example which will work on all browsers and is fairly simple to implement. Feel free to copy and modify this example to suit your needs.
If you've upgraded to Firefox 3.5 and you've been using -moz-opacity in your CSS, then you will see that the transparency or opacity (depending on how you look at it) is no longer taking effect. But don't worry, we have an explanation and a fix for you!
With the simulation of popup windows layered in the page, the need to play with the z-index CSS property and being able to dynamically center an element, commonly a div, becomes a necessity for everyone's javascript library. In this article, we will look at a simple function which will take the user's browser dimensions and center a given element's id.
TinyMCE has various different settings to really customize its features. One of these very useful settings is the ability to provide your own custom CSS classes for the editor itself. That way if you have, for example, modified the style of heading1, then you can provide that CSS to tinyMCE; that way, when you are editing, you truly get the full power of the "WYSIWYG" as the heading1 will look the same in the editor as it will when the HTML is generated.