Is there some kind of "not" CSS selector?
For example when I write the following line in my CSS, all input fields inside an tag with class classname will have a red background.
.classname input {
background: red;
}
How do I select all input fields that are OUTSIDE of a tag with class classname?
With current browser CSS support, you can't.
Newer browsers now support it- see Sam's answer for more info.
(See other answers for the alternatives in CSS.)
If doing it in JavaScript/jQuery is acceptable, you can do:
$j(':not(.classname)>input').css({background:'red'});
Mozilla supports negation pseudo-class:
:not(.classname) input {background: red;}
See also: http://developer.mozilla.org/en/Mozilla_CSS_support_chart
Note that the negation pseudo class is in the Selectors Level 3 Recommendation and works in recent versions of Firefox, Chrome and Safari (at least). Sample code below.
<html>
<head>
<title>Negation pseudo class</title>
<style type="text/css">
div {
border: 1px solid green;
height: 10px;
}
div:not(#foo) {
border: 1px solid red;
}
</style>
</head>
<body>
<div id="foo"></div>
<div id="bar"></div>
<div id="foobar"></div>
</body>
</html>
:not() is supported.)
div:not(#foo):not(#bar)Wouldn't you do that by setting the 'global' background to red, then using the classname to alter the others?
input { background: red; }
.classname input { background: white; }
.classname input rule.
I would do this
input { /* styles outside of .classname */ }
.classname input { /* styles inside of .classname, overriding above */ }
There is no way to select the parent of matched elements with CSS. You would have to use JavaScript to select them.
From your question I assume you have markup that looks more or less like this:
<form class="formclassname">
<div class="classname">
<input /> <!-- Your rule matches this -->
<input /> <!-- Your rule matches this -->
</div>
<input /> <!-- You want to select this? -->
<input /> <!-- You want to select this? -->
</form>
One option is to add a class to a higher element, say the <form>, and write a rule to style all of the inputs of the form. I.E:
.formclassname input {
/* Some properties here... */
}
Or
.formclassname > input {
/* Some properties here... */
}
If you want to select them based on the fact that they are not inside of an element with a specific class, you're out of luck without the use of JavaScript.
I think the closest you can get is to only affect direct descendants with a declaration
This code for example will only affect input fields directly under divs with class "maincontent"
div.maincontent > input {
// do something
}
Inputs are a bit annoying because, unlike most other html elements, there isn't necessarily a way of resetting all the css properties back to their default value.
If the styling is non-critical (ie a nice to have but doesn't affect functionality) I would use jQuery to get an array of all the inputs, check their parents, and then only carry out the styling on those outside that div. Something like:
$('input').each(function() {
if($(this).closest('.classname') == false)
{
// apply css styles
}
});
(By the way, I'm no jQuery expert, so there might be some errors in the above, but in principle something like this should work)
