<style type="text/css">
p:not(p:first-letter)
{
color:#000;
}
</style>
<p style="color:Blue">
test test
</p>
It's not working as expected as all the letters of paragraph should be in black except first.
No.
the first-letter pseudo-element is not part of the collection returned by the p selector. You can't exclude it then.
Why don't you just use :
<style type="text/css">
p
{
color:#000;
}
p:first-letter{
color:blue;
}
</style>
<p style="color:Blue">
test test
</p>
By the way, this is not a good practice at all. You should use a class on your p element and style via css. You don't need to generate css dynamically for that.
<style type="text/css">
p.test
{
color:#000;
}
p.test:first-letter{
color:blue;
}
</style>
<p class="test">
test test
</p>
The negation CSS pseudo-class, :not(X), is a functional notation
taking a simple selector X as an argument. It matches an element that
is not represented by the argument. X must not contain another
negation selector, or any pseudo-elements.
That means you cant use ::first-letter as an argument of :not(), because it's a pseudo-element.
Try the other way around:
http://jsfiddle.net/YET8v/1/
HTML:
<p>Test test</p>
CSS:
p {
color: #000;
}
p::first-letter {
color: blue;
}
The css selector not only takes simple selectors as parameter.
A simple selector is: a single element, attribute selector, class, id or pseude-class.
Examples of simple selectors:
body
*
[value="foo"]
.foo
#foo
:hover
Related
How can I write :hover and :visited condition for a:before?
I'm trying a:before:hover, but it's not working.
This depends on what you're actually trying to do.
If you simply wish to apply styles to a :before pseudo-element when the a element matches a pseudo-class, you need to write a:hover:before or a:visited:before instead. Notice the pseudo-element comes after the pseudo-class (and in fact, at the very end of the entire selector). Notice also that they are two different things; calling them both "pseudo-selectors" is going to confuse you once you run into syntax problems such as this one.
If you're writing CSS3, you can denote a pseudo-element with double colons to make this distinction clearer. Hence, a:hover::before and a:visited::before. But if you're developing for legacy browsers such as IE8 and older, then you can get away with using single colons just fine.
This specific order of pseudo-classes and pseudo-elements is stated in the spec:
One pseudo-element may be appended to the last sequence of simple selectors in a selector.
A sequence of simple selectors is a chain of simple selectors that are not separated by a combinator. It always begins with a type selector or a universal selector. No other type selector or universal selector is allowed in the sequence.
A simple selector is either a type selector, universal selector, attribute selector, class selector, ID selector, or pseudo-class.
A pseudo-class is a simple selector. A pseudo-element, however, is not, even though it resembles a simple selector.
However, for user-action pseudo-classes such as :hover1, if you need this effect to apply only when the user interacts with the pseudo-element itself but not the a element, then this is not possible other than through some obscure layout-dependent workaround. As implied by the text, standard CSS pseudo-elements cannot currently have pseudo-classes. In that case, you will need to apply :hover to an actual child element instead of a pseudo-element.
1 Of course, this does not apply to link pseudo-classes such as :visited as in the question, since pseudo-elements aren't links.
Write a:hover::before instead of a::before:hover: example.
To change a menu link's text on mouseover (different language text on hover), here is the
jsfiddle example
HTML:
<a align="center" href="#"><span>kannada</span></a>
CSS:
span {
font-size: 12px;
}
a {
color: green;
}
a:hover span {
display: none;
}
a:hover:before {
color: red;
font-size: 24px;
content: "ಕನ್ನಡ";
}
Try to use .card-listing:hover::after, hover, and after using ::. It will work.
Or you can set pointer-events:none to your a element and pointer-event:all to your a:before element, and then add hover CSS to a element:
a{
pointer-events: none;
}
a:before{
pointer-events: all
}
a:hover:before{
background: blue;
}
BoltClock's answer is correct. The only thing I want to append is that if you want to only select the pseudo element, put in a span.
For example:
<li><span data-icon='u'></span> List Element </li>
instead of:
<li> data-icon='u' List Element</li>
This way you can simply say
ul [data-icon]:hover::before {color: #f7f7f7;}
which will only highlight the pseudo element, not the entire li element.
You can also restrict your action to just one class using the right pointed bracket (">"), as I have done in this code:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style type="text/css">
span {
font-size: 12px;
}
a {
color: green;
}
.test1>a:hover span {
display: none;
}
.test1>a:hover:before {
color: red;
content: "Apple";
}
</style>
</head>
<body>
<div class="test1">
<span>Google</span>
</div>
<div class="test2">
<span>Apple</span>
</div>
</body>
</html>
Note: The hover:before switch works only on the .test1 class
I have the following test code:
<html>
<head>
<style type="text/css">
#test, .random-class { font-weight:bold; }
#test, .random-class:not('.another-class') { color:red; }
</style>
</head>
<body>
<div id="test">hello world</div>
</body>
</html>
This produces the following output:
In my understanding, hello world should be bold and red, but it's only bold.
I expected the second rule to affect
the element with id test OR
any element with class .random-class and not class .another-class
What am I missing here? Why is the second rule not applied?
You don't need the quotes around the class in your :not() selector, if you change it so it becomes:
#test, .random-class:not(.another-class)
{
color:red;
}
It will work as you expect it to
Take a look here for a demo
Take a look here for the docs on the :not() selector
Mentioned by #KWeiss in the comments:
Specifically the quotes are making the selector invalid so the rule is not applied
Hope this helps!
You dont need to use ' in :not
#test, .random-class { font-weight:bold; }
#test, .random-class:not(.another-class) { color:red; }
The second rule is not applied because there's an error in your sytax, which breaks the entire rule, not just the selector that is broken.
:not(.abother-class) is teh correct syntax (without the quotes.
If you separated your rules into two you'd get your desired effect, as would fixing the error e.g. either of these two solutions should work:
#test {color: red}
.random-class:not('.another-class') {color: red} /*This is still broken, but doesn't effect the above rule now*/
or
#test, .random-class:not(.another-class) {color: red} /* fixed*/
Let's say I have :
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Test for :not</title>
<link rel="stylesheet" type="text/css" href="Test.css" />
</head>
<body>
<div class="a">
<p class="para">This line should be green.</p>
</div>
<div class="a">
<p class="para">This line should also be green.</p>
<div class="ds">
<p class="para">This is another line that should be yellow</p>
</div>
</div>
</body>
</html>
I want to select all the elements with class="para" but exclude those that are descendants of those elements that have a class="ds". I have this CSS:
.ds { color: grey; border-style:solid; border-width:5px;}
.para {color:yellow;}
.para:not(.ds .para) {color:green; border-style:solid; border-width:5px;} //not working
So I assume I can only have simple selectors as part of :not(S), I can't have :not (X Y). I am running in both Chrome (18.0.1025.162 m) and Firefox (10). Any ideas?
Please note: That the query is part of a bigger issue, I have some code (in gwt) that is selecting a list of elements (e.g. with class="para") from the DOM. However, I have found a bug that requires the exclusion of elements that are descendants of a particular set of elements (e.g those with a class="ds").
The spec says that you can have any simple selector inside :not, where
A simple selector is either a type selector, universal selector,
attribute selector, class selector, ID selector, or pseudo-class.
So yes, you can't have a descendant selector :not(X Y). There is also the problem that when using the descendant selector you can only express positives ("when X's ancestors include a Y") and not negatives ("when X's ancestors do not include a Y");
The most practical solution would be to reverse the CSS logic so that the negative you want to express becomes a positive:
.ds .para { background:gold; }
.para { background: green }
See it in action.
Elements with class "para" excluding those that are immediate children of elements with class "ds" is:
*:not(.ds) > .para
I think you may be approaching it in the wrong way. Normal .para matches are green, and ones in .ds are yellow. To be sure, with the way you have it you would then need to remove the border once more, but that's not a problem.
.ds { color: grey; border-style:solid; border-width:5px;}
.para {color:green; border-style:solid; border-width:5px;}
.ds .para {color:yellow; border-style: none; }
This fits with what I see as the natural way of interpreting the formatting.
How can I write :hover and :visited condition for a:before?
I'm trying a:before:hover, but it's not working.
This depends on what you're actually trying to do.
If you simply wish to apply styles to a :before pseudo-element when the a element matches a pseudo-class, you need to write a:hover:before or a:visited:before instead. Notice the pseudo-element comes after the pseudo-class (and in fact, at the very end of the entire selector). Notice also that they are two different things; calling them both "pseudo-selectors" is going to confuse you once you run into syntax problems such as this one.
If you're writing CSS3, you can denote a pseudo-element with double colons to make this distinction clearer. Hence, a:hover::before and a:visited::before. But if you're developing for legacy browsers such as IE8 and older, then you can get away with using single colons just fine.
This specific order of pseudo-classes and pseudo-elements is stated in the spec:
One pseudo-element may be appended to the last sequence of simple selectors in a selector.
A sequence of simple selectors is a chain of simple selectors that are not separated by a combinator. It always begins with a type selector or a universal selector. No other type selector or universal selector is allowed in the sequence.
A simple selector is either a type selector, universal selector, attribute selector, class selector, ID selector, or pseudo-class.
A pseudo-class is a simple selector. A pseudo-element, however, is not, even though it resembles a simple selector.
However, for user-action pseudo-classes such as :hover1, if you need this effect to apply only when the user interacts with the pseudo-element itself but not the a element, then this is not possible other than through some obscure layout-dependent workaround. As implied by the text, standard CSS pseudo-elements cannot currently have pseudo-classes. In that case, you will need to apply :hover to an actual child element instead of a pseudo-element.
1 Of course, this does not apply to link pseudo-classes such as :visited as in the question, since pseudo-elements aren't links.
Write a:hover::before instead of a::before:hover: example.
To change a menu link's text on mouseover (different language text on hover), here is the
jsfiddle example
HTML:
<a align="center" href="#"><span>kannada</span></a>
CSS:
span {
font-size: 12px;
}
a {
color: green;
}
a:hover span {
display: none;
}
a:hover:before {
color: red;
font-size: 24px;
content: "ಕನ್ನಡ";
}
Try to use .card-listing:hover::after, hover, and after using ::. It will work.
Or you can set pointer-events:none to your a element and pointer-event:all to your a:before element, and then add hover CSS to a element:
a{
pointer-events: none;
}
a:before{
pointer-events: all
}
a:hover:before{
background: blue;
}
BoltClock's answer is correct. The only thing I want to append is that if you want to only select the pseudo element, put in a span.
For example:
<li><span data-icon='u'></span> List Element </li>
instead of:
<li> data-icon='u' List Element</li>
This way you can simply say
ul [data-icon]:hover::before {color: #f7f7f7;}
which will only highlight the pseudo element, not the entire li element.
You can also restrict your action to just one class using the right pointed bracket (">"), as I have done in this code:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style type="text/css">
span {
font-size: 12px;
}
a {
color: green;
}
.test1>a:hover span {
display: none;
}
.test1>a:hover:before {
color: red;
content: "Apple";
}
</style>
</head>
<body>
<div class="test1">
<span>Google</span>
</div>
<div class="test2">
<span>Apple</span>
</div>
</body>
</html>
Note: The hover:before switch works only on the .test1 class
<div id="main">
<p> one </p>
<p> two </p>
<p> three </p>
<p> four </p>
<p> five </p>
<div>
I don't want to apply css on first <p>One</p>
p {color:red}
I need just opposite of :first-child.
With the negation pseudo-class:
p:not(:first-child) { color: red; }
Browser support is very strong now, but alternatives include:
p { color: red; }
p:first-child { color: black; }
and:
* + p { color: red; }
Quentin's :not() solution works great for modern browsers:
p:not(:first-child) { color: red; }
His alternative for older browsers also works well, except it makes use of an overriding rule for the first child. It's not required, however...
You can simply use a sibling selector to apply the same rule as the one above, without the need to override it for p:first-child. Either one of these rules will work:
The adjacent sibling selector, which matches any p that comes directly after a p:
p + p { color: red; }
The general sibling selector, which matches any p that comes anywhere after a p:
p ~ p { color: red; }
Both combinators work identically here; the subtle differences between them only apply when you have other elements in the mix. Refer to the links provided for details.
I think :nth-child() will do the trick.
p:nth-child(n+2){
background-color:red;
}
This styles all of the p tags except for the first because it starts on the 2nd child. You could then style the first p tag separately with p:first-child.
Works everytime and doesn't need undoing:
p + p {
/* do 15 special things */
}
It takes every P that was preceded by a P. Don't set a property to undo it later. You should only add, if you can help it, not subtract.
You can also use "tilde" ( ~ ) operator
<!DOCTYPE html>
<html>
<head>
<style>
p ~ p {
background:#ff0000;
}
</style>
</head>
<body>
<h1>This is a heading</h1>
<p>The first paragraph.</p>
<p>The second paragraph.</p>
<p>The third paragraph.</p>
<p>The fourth paragraph.</p>
</body>
</html>
Here is the JSFiddle demo http://jsfiddle.net/RpfLa/344/
Did a quick test on FF 17, Chrome 23, Safari 5.1, IE9, IE1-8 on compaitbility mode