Saturday 04th of July 2009 02:13:14 PM 
position: absolute; top: 0; bottom: 50%; right: 50%; left: 0;

Since there is no way to know how many ems tall or wide the element will be, there is no way to make a clipping rectangle that ends 1 em to the right, or 1 em below, the content area of the element.

Further compounding the problem is that rect(...) only accepts length units and auto. The addition of percentage units as valid rect(...) values would go a long way toward improving things, and hopefully a future version of CSS will add this capability.

CSS Tutorials

CSS Tutorials

Welcome to the CSS Tutorials. In this section we cover Cascading Style Sheets, the powerful supplement to HTML that allows you complete control over the look of your websites. We'll show you how to create Cascading Style Sheets, and some of the cool tricks you can achieve with them.

For Beginners...

Introduction to CSS
This tutorial covers the basics: what are style sheets? How do I make a style sheet? It also shows some of the cool things you can do with style sheets.

CSS Units
A description of all the units that can be used with CSS, including lengths, percentages, colours and URL's.

For Intermediate Users...

Controlling Background Images and Colours
Learn how to use CSS properties to add background images and colour to your Web pages. Lots of neat tricks and examples are included!

Controlling Fonts with CSS
In this tutorial we take a look at how to control the fonts used in your page body text, using the various font properties that can be controlled with style sheets.

Controlling Text Appearance with CSS
This tutorial shows you how to control the layout of your text using the text properties available in CSS, such as line spacing and text alignment.

Making Lists Look Nicer with CSS
You can really go to town with HTML lists when you add a sprinkle of CSS! This tutorial shows you how to make your lists stand out from the crowd.

For Advanced Users...

CSS Positioning
This tutorial teaches you how to use CSS to position images, text, and other elements on your Web pages. Essential reading for anyone who wants to start using CSS for layout.




Given the following: 

<P STYLE="font-weight: normal;">This is a paragraph which contains a
<B>boldface element</B>, but Navigator 4 won't make the text bold.</P>

That's right: all of the text in the example paragraph will have a normal font weight. For some reason, Navigator 4 doesn't know that it should assign a font-weight of bold (or bolder) to B elements. Similar problems can arise when using STRONG, or any other element that would ordinarily