CSS Primer (Part 3)
<HEAD>
<STYLE TYPE="text/css">
<!--
BODY { background: red; color: black }
H3 { font-family:Lucida;
font-style:normal; color:green }
-->
</STYLE>
</HEAD>
<BODY>
<H3><FONT COLOR="Blue">
This is not a love song!</FONT>
</H3>
</BODY>
The answer: Blue. That's
because the font color instructions are closer to the affected text than the
CSS-controlled H3. Proximity to the affected content always wins.
Bend the rules
The rules of priority and inheritance make good sense, but there are bound to
be times when you want to override them and make a parent or warring style win.
To do that, just add ! important to the end of the style, and it'll whip any
competition:
H1 {color: teal ! important; }
Distinguishing DIV from SPAN
As you dig into style sheets, you'll notice these two unfamiliar tags appear
frequently. SPAN was invented solely so CSS users would have a nondestructive
place to hang their attributes; DIV has existed for a while. It's used to
demarcate the presence of any kind of new object on a page. The biggest
difference between them is that DIV is a block-level element and implies a line
break, whereas SPAN does not affect the flow of the page.
Turn off underlining
Most HTML authors have at some point wondered how to turn off hyperlink
underlining. Until now, that's been impossible. With style sheets, it's as easy
as attaching "text-decoration: none" to an Anchor style, like this:
A:link { color: cornsilk;
text-decoration: none}
The thin blue line
To add a touch of design to an otherwise text-heavy page, surround a few
paragraphs with a thin, color border to set them off. To add this to all your
paragraphs, create a style in your document header (see example below) and then
just use your normal <P> tags.
P { border-style:solid;
border-width:thin;
border-color:blue; }
Nail it down
In HTML, the position of any object--text, graphic, or multimedia component--is
relative to the rest of the page's structure. If you add a paragraph to your
intro, your prize graphic could end up below the fold--out of eyesight on the
first page view. CSS changes all that, not just by letting you state every
object's exact location (in pixels, inches, or points), but also by letting you
hammer it into place for good. Give an object an absolute position, and it will
be there, no matter what other text or graphics are competing for that spot.
Here's how to do this:
CSS Primer (Part 1) |
CSS Primer (Part 2)
| CSS Primer (Part 3) |
CSS Primer (Part 4)
|
