Is there a way that I can select a textarea such that $('#id_of_textarea').val() in jQuery will be ''? I tried using :empty. I saw that CSS provides a way to select empty inputs because the text is in the value attribute ([value=""]). Is there an attribute for the text in a textarea?
I'm looking for a selector that will work with CSS, not just jQuery.
Best solution I can think of is a CSS 3 workaround. Set the field to required (and unset it on submit if need be). Then you can use
textarea:invalid { /* style here... probably want to remove box-shadow and such */ }
this works in recent browsers except edge (at the moment):
textarea:placeholder-shown {
/* this should be active only when area is empty and placeholder shown */
}
so with jQuery for example you can pick all empty textareas:
$('textarea:placeholder-shown').val()
https://developer.mozilla.org/en/docs/Web/CSS/:placeholder-shown
If you're using React, then this is the solution:
textarea:not(:empty) {
// Apply css here
}
For instance,
/* Apply style when textarea contains text */
textarea:not(:empty) {
border: 6px solid blue;
padding: 6px;
}
Working demo:
Textarea - Select empty textarea using CSS
Note: While this works perfectly in React (because of re-painting caused by state update), It does not provide the same response if implemented using Vanilla HTML + CSS.
This works fine, as with input:
<textarea name="comment" id="comment" class="authority_body-input" data-val="{$form.comment}" onkeyup="this.setAttribute('data-val', this.value);">
textarea.authority_body-input:not([data-val=""]):not(:focus) {
color: red;
}
You can use the :empty css pseudo-class.
See an example in jsfiddle.
In the example there is a button for dynamically add new empty textareas to the DOM, so you can see that the new elements also are affected with the pseudo-class.
The code in the example was tested in Firefox 5.0, Opera 11.50 and Chromium 12.
Also, you can see a good description for the :empty pseudo-class here.
For those who are using AngularJS, you can use ng-class in your view to add a class to your textarea to know if it is empty or not.
HTML :
<textarea ng-model="myForm.myTextArea"
ng-class="(myForm.myTextArea.length)?'not_empty':'empty'">
</textarea>
CSS :
textarea.empty {
background-color:red;
}
textarea.not_empty {
background-color:blue;
}
Here is a jsfiddle.
Related
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
I have a set of div whose visibility is set to either hidden or visible. Based on this css visibility property i need to add the css property on those div, like
<div class="div-class" style="color:#ff0000; margin: 0px 10px; visibility:hidden;">
[Block of Code]
</div>
Now i need to define the following in style.css file.
.div-class:visible {top:10px;left:50px;}
.div-class:hidden {top:0px;left:0px;}
Is this possible???
yes with css attributre selectors you can do it
try the below css:
.div-class[style*="visible"] {
color: green;
}
.div-class[style*="hidden"] {
color: red;
}
What you are trying to do is not "really" possible.
I mean it's ill thought by design in the first place.
Even Vamsikrishna's solution might not work as expected.
If you set the overflow property to hidden via javascript or inline styles, the .div-class[style*="hidden"] rule will apply since the style attribute will contain the hidden string.
Moreover , setting inline styles on html elements is bad practice itself in most cases.
I suggest you try and learn css principles a little more.
I'd do the following:
HTML
<div class="div-class div-hidden">
[Block of Code]
</div>
CSS
.div-class {color:#ff0000; margin: 0px 10px; top:10px;left:50px;}
.div-hidden {visibility:hidden;}
.div-class.div-hidden {top:0px;left:0px;}
Then you can use javascript to toggle the "div-hidden" class.
You can do something using attrchange - a jQuery plugin ,
like this:
Add "attrchange" script into HTML page like
In Javascrip catch event
var email_ver_input = $("input#email_ver_input.verifyInput");
email_ver_input.attrchange({
trackValues: true,
callback: function (event) {
if (email_ver_input.is(":visible")){
$("#inputcode_wrap").show();
}
}
});
How can I prevent browsers from customizing buttons, such as Chrome, for example, does.
I would like to remove that "No f... sen". What is the best way to do that?
The only way you can remove the text part in non-IE10+ browsers to make it transparent:
input[type=file] { color: transparent; }
However, I’d not recommend that, as you will also not be able to see the text when a file has been selected either.
For IE10, you can style it with:
input[type=file]::-ms-value { /* styles here */ }
In WebKit you can style the button itself with:
input[type=file]::-webkit-file-upload-button { /* styles here */ }
While in IE10 you can do the same with:
input[type=file]::-ms-browse { /* styles here */ }
Try to google for "Css style file input" ;)
This will lead to: http://www.quirksmode.org/dom/inputfile.html
Styling of <input type="file" /> is really tricky.
I have a Submit Button like this:
<input type="submit" data-corners="false" id="code_check_button" tabindex="5" data-rel="external" value="GO">
which - with a custom css theme - outputs this: http://sht.tl/59y3m
Now I would like to use the id (#code_check_button) to style the button with more specificity.
Unfortunately jquerymobile automagically transforms the input type submit in a snippet of code I cannot control: http://sht.tl/cQq
As you can note, the original button ID is useless...
Can you tell me how may I custom style that button (of course, without wrapping it in an extra tag...)?
Thank you!
Numerous ways this can be achieved..
Here are a few examples:
submit {
styles:styles;
}
Not the most compatible in older browsers:
input[type="submit"] {
styles:styles;
}
Then you can target the ID:
#code_check_button {
styles:styles;
}
In your stylesheet add the ID #code_check_button and provide the desired style you want.. see example below :-
#code_check_button {
your desired style properties here...
}
EDIT:
You can use the class of the generated div and style the button accordingly. In this generated snippet you have two elements to style. please find below :-
.ui-btn {
style properties here...
}
.ui-btn .ui-btn-text {
style properties here...
}
CSS
#code_check_button {
color:#000 !important;
width:200px !important;
}
You can see I have added !important tag in all the css properties. This is because of overwritten the jQ mobile default styles.
If something keeps changing your intended css into useless code, this may be a situation where you would resort to simple text (eg. nano for mac or notepad for windows) Web design programs are double edged swords, most of the time the bells and whistles on these programs help make things easier, but sometimes they can make things more complicated. To custom style a button all you have to do is put your id or class selector name in the input tag and then enter the css for it. For example
CSS
#code_check_button { background-image: url(/*desired image url*/);
background-color: /*desired background color*/;
color: /*desired font color*/; }
HTML
<input id="code_check_button" type="submit" name="submit">
Just try it in notepad this time.
I wrote some dummy css. Instead of a tag I got escaped characters. How can I add a div tag instead?
.HeaderName:after{
content: "<div class=\"Name2\">text</div>";
}
.Name2 {
color: red;
}
The content declaration cannot add tags to the page (tags are structural); additionally, CSS is meant for presentation changes, not structural content changes.
Consider using jQuery, instead, such as:
$(".HeaderName").after("your html here");
If you need that extra tag only to make the added text red, just do this:
.HeaderName:after{
content: "text";
color:red;
}
Tested on Chrome.
You can't insert tags using content: in CSS. Here is the relevant part of the spec; see the 'content' property in the CSS 2.1 spec.