How to set css in jquery

jQuery is a technology used to simplify the writing of JavaScript programs. Many of the functions it provides can be completed in a more concise and smooth way with the help of native JavaScript language. Among them, jQuery css settings are an important feature that can easily add, remove or change styles for HTML web pages.

1. Set the style

To use jQuery to set the style, you first need to call the $ symbol to represent the jQuery program and use the css() function. For example, if you want to set the border of the text box (ID: txtInput) to red, you can use the following code:

$('#txtInput').css('border-color', 'red');

Among them, 'border-color' specifies the CSS style attribute to be set, and 'red' is the value set. This way, applications can implement style changes in very short lines of code.

2. Batch changing styles

Another common application scenario of jQuery css settings is when changing styles in batches. In general, the jQuery program can select a certain type of element through the category name to make related style changes. For example, the sample code to change the text color of a Div element (class name "myDiv") to blue is as follows:

$('.myDiv').css('color', 'blue');

In the above code, 'myDiv' is the class name of the Div element, so that all Div elements with this class name can accept the operation of changing the style.

3. Dynamically set styles

More importantly, jQuery css settings can also dynamically add styles to HTML pages. By using the ' ' operator, you can add new properties in CSS to change the style of a specific element. For example, if you want to add a new CSS border style to the text box with the ID txtInput after clicking the button 'button1', you can use the following code:

$('#button1').click(function() {
$('#txtInput').css('border-style', 'solid');
$('#txtInput').css('border-width', '1px');
$('#txtInput').css('border-color', 'blue');
});

In the above code, a new blue color is created for the text input box Colored border so that it is dynamically added to the page when the button is clicked.

4. Remove styles

Finally, jQuery css settings can also be used to remove specific styles. For example, if you want to remove a specific style from an element, just pass a null value. Use the following code to remove the background image in a DIV element:

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

Removing the above code will Remove the background image of this DIV element and make it the default HTML color.

Summary

By using jQuery css settings, developers can more easily manipulate CSS styles and make personalized customizations to HTML files. Not only can you set styles quickly and easily, you can also modify them in batches, dynamically add styles and delete unwanted styles. In application development, combining jQuery programming with CSS coding will make it easier and faster to achieve various functions and beautiful page effects.

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