How to set the border to 2px in jquery

In web development, jQuery can be used to easily add and modify the style of web pages, and setting borders is a very common style operation. The following will introduce how to use jQuery to set the border to 2px.

First, you need to introduce the jQuery library into the web page. The jQuery library can be imported by adding the following code to the HTML file:

<script src="https://code.jquery.com/jquery-3.5.1.min.js"></script>

Next, use jQuery’s css() method to select the element where a border needs to be added, and set border# The value of the ## attribute is 2px solid, and the code is as follows:

$(element).css("border", "2px solid");

Among them,

element is the selector of the element that needs to add a border, such as #container represents the element with ID container, .item represents the element with class item, div represents all

elements and so on.

If you need to set a specific color border, you can add a color value after

solid, for example:

$(element).css("border", "2px solid red");

means setting a red 2px border.

In addition to using the

css() method to set the border attribute, you can also use the addClass() method to add a custom style class to the element, and then add it to the CSS file Define the style of this class, for example:

$(element).addClass("border-class");

means adding a style class named

border-class to the element. The border style of this class can be defined in the CSS file like this:

.border-class {
    border: 2px solid red;
}

The above is how to use jQuery to set the border to 2px. You can modify the web page style through simple code, which improves the efficiency of web development.

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