How to use CSS with jQuery

In web development, CSS plays an important role in controlling page style. And jQuery is a popular JavaScript library that helps developers handle DOM manipulation and event handling more easily. Therefore, many developers use jQuery to control the styling of page elements. So, does jQuery CSS exist? This article will discuss this issue and how to use CSS with jQuery.

jQuery’s CSS methods

In jQuery, we can use CSS methods to control the style of page elements. This method applies CSS properties and values ​​to selected elements. For example, if we want to make the background color of an element red, we can use the following code:

$("selector").css("background-color", "red");

In this example, "selector" is the selector of the element we want to apply the style to, for example "#myElement ”, while “background-color” and “red” are CSS properties and values. The CSS method accepts two parameters, the first is the CSS property name, and the second is the CSS property value. The jQuery CSS method can also accept an object containing CSS properties and values ​​as parameters, for example:

$("selector").css({
  "background-color": "blue",
  "color": "white",
  "font-size": "14px"
});

In this example, we set the background color of the element to blue, the text color to white, and Font size is set to 14 pixels.

Using Class Names

Although jQuery’s CSS methods can apply CSS properties and values ​​directly, a better approach is to use class names. This separates common styles and definitions, making the code easier to maintain and manage. Define the class in the CSS file:

.myClass {
  background-color: blue;
  color: white;
  font-size: 14px;
}

Then add this class to the element:

$("selector").addClass("myClass");

This will apply the myClass class to all elements that match the selector. We can also use the removeClass() and toggleClass() methods to add or remove classes from elements. For example:

$("selector").removeClass("myClass");
$("selector").toggleClass("myClass");

In this example, we delete the myClass class and then switch the element's class. If the element already has a myClass class, that class will be removed. If not, the class will be added.

Summary

In jQuery, we can use CSS methods to apply CSS properties and values, and we can also use the addClass(), removeClass(), and toggleClass() methods to add, delete, and switch kind. Using class names is better than directly manipulating CSS properties and values, allowing for better management and maintenance of the code. So, although jQuery CSS exists, it's better to use class names.

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