What is cascading order?
Cascading order is a sorting system consisting of rules by which declarations are sorted out so that there are not conflicts as to which declaration is to influence the presentation. The sorting begins with rule no 1. If a match is found the search is over. If there is no match [...]
Can I include comments in my Style Sheet?
Yes. Comments can be written anywhere where whitespace is allowed and are treated as white space themselves. Anything written between /* and */ is treated as a comment (white space). NOTE: Comments cannot be nested.
What is the difference between ID and CLASS?
ID identifies and sets style to [...]
How do I make my div 100% height?
You need to know what the 100% is of, so the parent div must have a height set. One problem that people often come up against is making the main page fill the screen if there’s little content. You can do that like this :
CSS
body, html {
height:100%;
}
body {
margin:0;
padding:0;
}
#wrap [...]
How do I have a non-tiling (non-repeating) background image?
With CSS, you can use the background-repeat property. The background repeat can be included in the shorthand background property, as in this example:
body {
background: white url(example.gif) no-repeat ;
color: black ;
}
CSS
CSS is clearly very useful for separating style from content. But apparently people tend to have problems when [...]
How do I get rid of the gap under my image?
Images are inline elements, which means they are treated in the same way as text. Most people kind of know this – they know that if you use ‘text-align:center’ on an image it will be centred. What many people don’t realise is that this means [...]
Why call the subtended angle a “pixel”, instead of something else (e.g. “subangle”)?
In most cases, a CSS pixel will be equal to a device pixel. But, as you point out, the definition of a CSS pixel will sometimes be different. For example, on a laser printer, one CSS pixel can be equal to 3×3 device [...]
How do I combine multiple sheets into one?
To combine multiple/partial style sheets into one set the TITLE attribute taking one and the same value to the LINK element. The combined style will apply as a preferred style, e.g.:
<LINK REL=Stylesheet HREF="default.css" TITLE="combined">
<LINK REL=Stylesheet HREF="fonts.css" TITLE="combined">
<LINK REL=Stylesheet HREF="tables.css" TITLE="combined">
What is attribute selector?
Attribute selector is a selector defined [...]
How do I place text over an image?
To place text or image over an image you use the position property. The below exemple is supported by IE 4.0. All you have to do is adapt the units to your need.
<div style="position: relative; width: 200px; height: 100px">
<div style="position: absolute; top: 0; left: 0; width: 200px">
<image>
</div>
<div style="position: [...]
Why do style sheets exist?
SGML (of which HTML is a derivative) was meant to be a device-independent method for conveying a document’s structural and semantic content (its meaning.) It was never meant to convey physical formatting information. HTML has crossed this line and now contains many elements and attributes which specify visual style and formatting [...]
Three selectors: h1, .warning and #footer, what they do ?
An element points at a HTML-tag somewhere on your page. In the example above we want to style the
-tag. Note that using an element like that affects all tags with that name, so using
p { margin-left: 100px; }
gives all
-tags a left-margin.
Using a class is just [...]
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