Am using bootstrap LIKE dropdown menu with custom HTML5 attribute with data- as a prefix with a value starting from #, now for some reason I can't change this.
Here's the script link (It's like this dropdown)
Now the issue is am using dynamic approach using PHP so child of an element changes often so I am not using nth-child so thought of using attribute-value selector but CSS doesn't accept if value contains #. Any workarounds for this?
<div data-demo="works">This works</div>
<br />
<div data-demo="#doesnt_works">This fails</div>
CSS
div[data-demo=works] {
color: red;
}
div[data-demo=#doesnt_works] {
color: green;
}
Demo
Use quotes:
div[data-demo='#does_work'] {
color: green;
}
DEMO
Why it has to be quoted? Because # has special meaning in CSS. Quoting it hides that special meaning. The same effect could be approached using ": [data-demo="#does_work"] or by escaping # with \: [data-demo=\#does_work]
Wrap the value in quotes "
div[data-demo="#doesnt_works"] {
color: green;
}
http://jsfiddle.net/jeq5W/1/
Related
I'm beginning to learn more about CSS formatting and now I've picked up ABEM to use along with SCSS to develop a WordPress site.
Is it then valid to add a modifier directly to let's say an h1 block? Like this:
HTML
<h1 class="-green">To make the text green.</h1>
CSS
.-green {
color: green;
}
Or do I need to add a block or an element before to modify it instead?
Like this:
HTML
<h1 class="a-heading_text -green">To make the text green.</h1>
CSS
.a-heading_text.-green {
color: green;
}
ABEM is a BEM variant and a lonely modifier wouldn't be BEM-compliant. Your second option is the right one: you "need to add a block or an element before to modify it instead".
If you want to create a standalone helper for a simple purpose, then it is not a modifier but a block:
<h1 class="green">To make the text green.</h1>
With the CSS:
.green {
color: green;
}
This helper block can of course be mixed with other blocks or elements. The following code is valid:
<h1 class="a-heading_text green">To make the heading text green.</h1>
I am developing a website which relies on user input to create scripts
As a defense in depth solution I am adding a blacklist protection to omit all links with an external source. I tried the following code snippet but it doesn't work (my browser supports it because w3schools sample works on it) :
[href~=//]
{
display: none;
}
There's a subtle different in the selectors that you are using :
[attribute~="value"] - This checks for a specific word (i.e. wrapped in white-space or the exact string)
[attribute*="value"] - This checks if a given set of text is contained at all.
You'll see that the second approach works, whereas the first does not.
Additionally, you'll want to ensure that you have the specific element you are targeting and that you are wrapping your value within quotes, as seen below :
a[href*='//']{
display: none;
}
Example
a[href*='//'] {
display: none;
}
/* Added to demonstrate selector differences */
a[href~='//'] {
color: green;
display: block;
}
<h4>[href*="value"] Examples</h4>
<a href='http://www.google.com'>Hidden</a>
<a href='stackoverflow.com'>Shown</a>
<a href='Check // this out'>Green</a>
<h4>[href~="value"] Examples</h4>
<a href='a//'>Hidden (since not whole "word")</a>
<a href='//'>Shown (as exact)</a>
<a href='//a'>Hidden (since not whole "word")</a>
Try this:
a[href*="//"]{
display:none;
}
Select all a objects whose href contains '//'
working fiddle
How to change the color only from text except everything is between tags ?
Sample text:
<b>A7</b> <b>D</b>
this is a test
<b>A7+</b> <b>G9</b>
this is a test
Assuming that all of that text is wrapped in a parent element (I've used <div>, but almost any other element would suffice), as such:
<div>
<b>A7</b>
<b>D</b>
this is a test
<b>A7+</b>
<b>G9</b>
this is a test
</div>
Then you can't change "all the text except the <b> tags", because CSS won't allow you to style the text without affecting the colour of the the <b> elements, you can, however, style the div and then 'unstyle' the b elements:
div {
color: #f00;
}
div b {
color: #000;
}
JS Fiddle demo.
To do this with jQuery (and, honestly, from the information you've posted jQuery seems unnecessary), you'd have to create wrapping elements for each of the strings of characters that are not wrapped in b elements and then directly style, or add a class to, those elements:
$('body').contents().filter(function(){
return this.nodeType === 3 && this.nodeValue.trim().length > 0;
}).wrap('<span />').parent().css('color','red');
JS Fiddle demo.
References:
contents().
filter().
parent().
wrap().
Try:
body{color:red;}
b{color:black;}
Fiddle here.
You could use jQuery like this:
$('body').css('color', '#FFCCFF');
$('b').css('color', '#000000');
But if you can do it in CSS it would be better:
body {
color: #FFCCFF;
}
b {
#000000;
}
Since you tagged this as jquery, I just provided a solution for this with jquery, You may wrap the html which was written by you in a paragraph tag like below. And then you have to use the .addClass function of Jquery to set different classes with different colours for that both paragraph and bold tag.
HTML
<p><b>A7</b><b>D</b>
this is a test
<b>A7+</b><b>G9</b>
this is a test</p>
CSS
.Paragraph{
color:red;
}
.boldtext{
color:black;
}
JQUERY
$('p').addClass('Paragraph');
$('p > b').addClass("boldtext");
DEMONSTRATION
HTML
<div data-whatever='something cols-16 else'>
</div>
This works:
Will work - CSS
[data-whatever*='cols-1'] {
background: red;
}
It will find the div and make it red.
Will not work - CSS
[data-whatever='cols-16'] {
background: red;
}
It will not find the div because there are other stuff in there as well.
Problem
The problem with the working CSS, is that it matches both cols-16, cols-1 and any other that starts with cols-1.
Question
Is it possible to find an attribute value, exact match?
In order to target the class cols-16 (even when it appears with other classes)
and not target the cols-1 class use this:
[data-whatever~='cols-16'] {
background: green;
}
You can see this working in this fiddle.
For more info see this post (Goto #16. - X[foo~="bar"]
The tilda (~) symbol allows us to target an attribute which has a
spaced-separated list of values.
try this:
[data-whatever~='cols-1'] {
background: red;
}
It worked for me if I didn't missunderstand your question
Edit: I just remembered the ~= randomly, tried it, and pasted it.
But I just googled a bit (I had curiosity and found This, it's quite interesting)
To ensure that it only matches cols-1 and not cols-16 without relying on the cols-16 style overriding the cols-1 style (below), you could:
[data-whatever='cols-1'],
[data-whatever^='cols-1 '],
[data-whatever*='cols-1 '],
[data-whatever$='cols-1'] {
background: red;
}
This matches data-whatever="cols-1", data-whatever="... cols-1", data-whatever="cols-1 ..." or data-whatever="... cols-1 ...".
JSFiddle example.
Thanks to aleation's answer: data-whatever~="cols-1" achieves the same as the above in just one selector.
--
At any rate your cols-16 styling could overwrite your cols-1 styling anyway, depending on the order it was presented:
[data-whatever*='cols-1'] {
background: red;
}
[data-whatever*='cols-16'] {
background: blue;
}
/* cols-1 will be red. cols-16 will be blue */
JSFiddle example.
I'm developing a web based source code editor. I'm thinking of adding support for themes (syntax highlighting).
//Default theme
.default-reserved-word
{
background-color : red;
}
//Some other theme
.monokai-reserved-word
{
background-color : green;
}
inside the editor each syntax highlightable word is surrounded by a span tag with the appropriate class:
....
<span class="default-reserved-word">def</span>method name
...
which I want to convert to (when the user clicks a "change theme" button)
....
<span class="monokai-reserved-word">def</span>method name
...
Is there a simple way of switching these CSS rules without going through all the elements and modifying the class attributes?
(FWIW, I need to support IE7+, FF3.6+)
I'd suggest using a different method, perhaps have a theme class on a higher parent container:
<div class="theme-default">
And then use CSS like this:
.theme-default .reserved-word {
color: blue;
}
Whilst this method is not exactly what you've asked for it will simplify the process of changing styles, for a start you won't have to search through loads of spans, finding the current class of theme-name + ' -reserved-word' (etc) and doing a string replace on them.
Add a class name to the root element (<html>) and change that on use input.
.theme1 .reserved-word { color: red; }
.theme2 .reserved-word { color: green; }
and then change
<html class="theme1">
to
<html class="theme2">
with Javascript.
You can use jQuery for that:
var elements = $('.default-reserved-word')
elements.removeClass('default-reserved-word');
elements.addClass('monokai-reserved-word');