In jQuery: first-child selector usage example _ jquery

This article mainly introduces the usage of the first-child selector in jQuery. The example analyzes the functions and definitions of the first-child selector and the usage skills of matching the first child element of the parent element, it has some reference value. if you need it, you can refer to the example in this article to describe the usage of the first-child selector in jQuery. Share it with you for your reference. The specific analysis is as follows:

This selector can match the first child element of the parent element.

Syntax structure:

The code is as follows:

$ (": First-child ")

This selector should also be used with other selectors, such as class selector and element selector. For example:

The code is as follows:

$ ("Ul li: first-child" ).css ("color", "blue ")

The above code sets the font color of the first li element under the parent element to blue.

Note:Here it is necessary to combine the above code to describe the concept. The parent element mentioned here is not li, but the parent element of li. Many people often mistakenly think that it is the last element in the child element that matches the li element.

Instance code:

The code is as follows:

: First-child selector-script House