How to add !important to css style using jquery

Using jQuery to Add CSS Important Style

There are a couple of ways we can use jQuery to add a CSS style as important. The best way we have found is to simply create a class that has the style with the !important property, and then add that class using the jQuery addClass() method.

Let’s see this in action below.

Let’s say we have the following HTML:

Here is the code for you to see:

Now let’s use our code from above to change the color of the text to red using the !important property and jQuery.

Here is our new HTML. It just has a new class, permanent-red, in the style section.

And here is the jQuery code:

If you are using WordPress, don’t forget to change the $ to jQuery as below:

jQuery(".p1").addClass("permanent-red");

There is also a way we can add a new style and update it all using jQuery.

jQuery CSS Important – Updating CSS Style and HTML All in jQuery

In this example, instead of updating the CSS style section and adding a new class to it, we will create the class using jQuery and add it to our HTML.

We will do this by creating a new style tag with our class in it, and adding it to the head section of our document using the jQuery appendTo() method.

Here is the jQuery code to do this:

$(".permanent-orange ").appendTo("head"); $(".p3").addClass("permanent-orange"); 

So here is our HTML code again with a new class name:

Here is the code for you to see:

And this is what happens when we apply our jQuery code from above:

Let’s take a look at one final way that we can use jQuery CSS important that we don’t really recommend.

Adding a CSS !important property using the jQuery attr() method

Another way we can easily use jQuery to add a CSS style as !important, is by using the jQuery attr() method and targeting the style attribute.

We don’t recommend this because doing it this way will get rid of any other in-line styles the element might have. We have included it though because it is an easy way to add a style to an element if it has no other inline styles attached to it.

So here is our HTML again with inline styles this time:

Here is the code for you to see:

And here is our simple jQuery code using the attr() method:

$(".p5").attr("style", "color: red !important"); 

And this is what happens when we apply our jQuery code from above:

As you can see in this example, the text used to have a bold style attached to it, but this has been overwritten using the jQuery code.

Hopefully this article has been useful for you to understand how to use jQuery to add a CSS style as important.

Other Articles You’ll Also Like:

• 1. Using jQuery to Change Inner HTML
• 2. jQuery mousedown – An Interactive Example of the jQuery mousedown Method
• 3. Using jQuery to Change Label Text
• 4. Get Selected Option from Dropdown Using jQuery
• 5. jQuery prev – Get the Previous Element of a Div
• 6. Using jQuery to Swap an Image on Hover
• 7. jQuery mouseleave – An Interactive Example of the mouseleave Method
• 8. jQuery blur – How to Use the blur() Method on an HTML Form
• 9. Using jQuery to Add Option to Select List
• 10. jQuery appendTo – Insert Element As Last Child

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How to add !important to CSS property using jQuery

In this tutorial, I show you how to add !important to CSS property using jQuery. When you have to increase the priority of any style property in CSS important keyword is used.

The important property overrides the existing style on the element and force to apply the important style. To mark any style as important the “!important” keyword is used immediately before the semicolon like below.

In the above example I have applied the red color (color code #ff000) to site header using !important keyword so the existing color has been override to red.

Now the question is how to add !important to CSS style using jQuery at run time –

How to add !important to CSS style using jQuery

There are 4 methods which can be used to add !important CSS style using jQuery –

1. attr()

The attr() method in jQuery get or set attributes and values of the selected elements.

Get attribute value

$(‘selector’).attr(‘attributeName’);

It returns the value of the selected element.

Set attribute value

$(‘selector’).attr(‘attributeName’, value);

It set the value to selected elements.

    .site-header     
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In the above example “site-header” div class color has been set to important red using the attr() method. It ignores the existing color in the class and applies an important style.

See the below output it adds the new color style to the property and overrides the existing style.

Note – In the below methods, I have used the same example only the method name is changed.

2. addclass()

The addclass() method adds the new class to the selector element along with its existing class if any. To add the class use addclass() method and specify your class name.

$('selector').addclass('site-header');

The class should exist in your CSS otherwise it adds the class but no style has been applied.

    .site-header < color:green; width:200px; font-size:25px; >.bgcolor     
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The addclass() method adds the “bgcolor” class to the site-header div and in that class you can use !important with any of the CSS property.

3. cssText

The cssText property gets or sets the CSS style of the selector as a string. Using this you can set multiple styles.

Syntax –

    .site-header     
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4. css ()

The css() method is used to set and get style on the selector element.

Return the CSS property value:

Set the CSS property and value:

The css() method manipulates the CSS style property of the selector but this doesn’t allow to set !important to the property. The below code doesn’t work at run time –

$(".site-header").css("color", "red !important");

but still, it can be achieved with some limitations see below example –

    .site-header     
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Note – Here I have used three parameters and in the third parameter I passed “important” this only works with modern browsers like – chrome, edge, and firefox.

Conclusion

This is how by using any of the above methods you can add the !important to CSS property using JQuery.

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Как поставить !important в css с jQuery?

Есть множество вариантов того как можно поставить !important для элемента с использованием jQuery. Некоторые из них, я рассмотрю ниже.

Демо

Это демо было создано с помощью функции, которая описана ниже в этой записи.

Первый вариант (jQuery)

Первый вариант — это специально написанный плагин, который вам поможет в установлении !important свойства для элементов на странице.

1. Для начала вам нужно скачать файл.
2. После чего подключить его перед — .
3. Далее вы можете его использовать. Подробнее о том как использовать смотрите ниже.

Код

Код выше добавит !important для background-color: red . В итоге у элемента .element появится style атрибут с background-color: red !important; .

Второй вариант (jQuery)

Вы так же можете добавить свойство !important с использованием внутренней функции jQuery — .attr() .

Код для .attr()

Скрипт выше сделает тоже самое, что и в первом варианте, но если на элементе .element уже имеет какие-то стили, которые установлены с помощью style , то они будут заменены на новые (которое было прописано через .attr() ).

Если у элемента уже есть стили, которые стоят через style и вам нужно добавить дополнительное свойство, то вы можете использовать следующий код:

А вот функция, которая может кому-то пригодиться, если вам лень постоянно прописывать тоже самое:

Код функции

// Добавить ширину для .element addImportantStyle('.element', 'width: 100px !important;'); // Добавить border и высоту для .element addImportantStyle('.element', 'border: 1px solid #000; height: 50px !important;') function addImportantStyle(element, style) < var $el = $(element).attr('style'); // For some browsers, `attr` is undefined; for others, // `attr` is false. Check for both. if ($(element).attr('style') !== '' ) < $(element).attr('style', $(element).attr('style') + ';' + style); >else < $(element).attr('style', style); >>

Источник

How to add !important to CSS property with jQuery

In CSS !important is used to increase the priority of a CSS property. This ignores the overriding properties.

In jQuery, you can use the css() method to manipulate style property of the selector but this doesn’t allow to set !important to property.

$('#txt').css('width', '100px !important');

The above code doesn’t work when you run it.

In this tutorial, I show how you can add !important to CSS property with jQuery.

Contents

1. Using a ddClass()

This adds a new class to the selector element and doesn’t replace the existing class from the element.

Call addClass() method on the selector and specify yours class-name in the method.

$( selector ).addClass( class-name );

 .textbox  

2. Using attr()

This method gets or sets the value of the element attribute.

Get attribute value

$( selector ).attr( 'Attribute-name' );

Set attribute value

$( selector ).attr( 'Attribute-name', value );

Using attr() to edit element style attribute and specifying value with !important .

This adds a new property to the element if it not specified otherwise ignores the existing property.

3. Using cssText property

The cssText property allows setting multiple CSS styles or get the CSS style of selector as a string.

Set style Syntax –

 .textbox  

4. Conclusion

You can use any of the above-specified methods on your page to add !important to a property.

If you found this tutorial helpful then don’t forget to share.

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