How to remove css style in jquery

jQuery is a JavaScript library widely used in web development. It provides a rich API that can quickly and easily complete common tasks such as operating DOM, event processing, and animation effects. In the front-end development process, page style changes are one of the things that often need to be dealt with. Sometimes we need to remove the CSS styles of certain elements. At this time, jQuery methods can come in handy.

This article will focus on how to use jQuery to remove CSS styles. I hope it will be helpful to readers.

1. Remove a certain CSS attribute of a specific element

If you only need to delete a certain CSS attribute of a certain element, you can use jQuery's css() method. This method requires one parameter, which is the name of the CSS property to be removed. For example, if you want to remove the background-color attribute of element <div id="myDiv">, you can write the code like this:

$('#myDiv').css('background-color', '');

You can see , The second parameter of the css() method is an empty string, which means to clear the background-color attribute value of the element.

If you need to remove multiple CSS attributes, you can call the css() method in sequence to clear each attribute value, as follows:

$('#myDiv').css('background-color', '');
$('#myDiv').css('color', '');

2. Remove specific elements All CSS styles

If you need to remove all CSS styles of an element, you can use the removeAttr() method. This method requires one parameter, which is the name of the attribute to be removed. What should be noted here is that the removeAttr() method can only clear the attributes of the element, but cannot clear the style, so all CSS styles need to be converted into element attributes.

The specific steps are as follows:

1. Get all CSS styles of the element, including inherited styles.

var allStyles = window.getComputedStyle($('#myDiv')[0]);

2. Traverse the obtained CSS styles, use each style attribute as an attribute of the element, and assign the value to empty.

$.each(allStyles, function (idx, val) {
    $('#myDiv').removeAttr(val);
});

This will clear all CSS styles of the specified element.

3. Remove the CSS style of the entire page

If you need to clear the CSS style of the entire page, you can use a similar method. However, it is important to note here that clearing page styles may cause problems with some layout and styles of the page. Therefore, this method should be used with caution in practice.

One way to clear the page style is to traverse all elements and clear the CSS style of each element.

The specific steps are as follows:

1. Get all elements of the page.

var allElements = $('*');

2. Traverse the page elements and clear the CSS style of each element.

$.each(allElements, function (idx, val) {
    $(this).removeAttr('style');
});

The above is how to use jQuery to remove CSS styles. It is important to note that changes in page style may affect page layout and design, so front-end code needs to be handled with caution.

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