Thursday, May 21, 2009

CSS Property: white-space


White Space (CSS Property) - white-space: { normal | nowrap | pre | pre-line | pre-wrap | inherit };

Description

This property controls the handling of whitespace inside an element. Whitespace is a collective name for one or more occurrences of the characters space, tab, line feed, carriage return, and form feed. Typically, within an HTML element, user agents will collapse a sequence of whitespace characters into a single space character.

Note that this property only handles whitespace characters; a common beginner’s mistake is to try to use it to prevent floated elements from dropping down if there isn’t enough room on a
line.

Example

This style rule makes elements that belong to the "poetry" class retain and render all
whitespace in the document markup:

<code class="css">.poetry {
white-space: pre;
}</code>

Value

normal
A value of normal dictates that sequences
of whitespace will collapse into a single space character. Line
breaks will occur wherever necessary to fill line boxes.
nowrap
Specifying nowrap ensures that sequences of
whitespace will collapse into a single space character, but line
breaks will be suppressed.
pre
Specifying pre ensures that sequences of
whitespace won’t collapse. Lines are only broken at new lines in the
markup (or at occurrences of "\a" in generated
content).
pre-line
This value will cause sequences of whitespace to collapse into a
single space character. Line breaks will occur wherever necessary to
fill line boxes, and at new lines in the markup (or at occurrences
of "\a" in generated content). In other words,
it’s like normal except that it’ll honor
explicit line breaks.
pre-wrap
Specify pre-wrap to ensure that sequences
of whitespace won’t collapse. Line breaks will occur wherever
necessary to fill line boxes, and at new lines in the markup (or at
occurrences of "\a" in generated content). In
other words, it’s like pre except that it’ll
wrap the text at the end of line boxes.

Compatibility

Internet Explorer: 5.5,6.0.7.0 (Partial)

Firefox 1.0,2.0,3.0 (Partial)

Safari 1.3,2.0,3.0 (Full)

Opera 9.2 (Partial) ,9.5 (Full)

Internet Explorer for Windows versions up to and including 7 don’t support the values
pre-line or pre-wrap. The values normal and pre behave like pre-wrap on textarea elements. The value nowrap behaves like pre-line on textarea elements.

Internet Explorer for Windows versions up to and including 7 don’t support the value inherit.

Firefox versions up to and including 2 don’t support the values pre-line and pre-wrap (although -moz-pre-wrap is similar to the latter). The values normal, nowrap, and pre behave like pre-wrap on textarea elements.

Opera 9.2 and prior versions don’t support the value pre-line. The values normal and pre behave like pre-wrap on textarea elements. The value nowrap behaves like pre-line on textarea elements.

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