元素类选择器选择与给定元素类匹配的所有元素。使用该css()
方法可以更改背景色。
您可以尝试运行以下代码,以学习如何使用jQuery通过其类名选择元素:
<html> <head> <title>jQuery Selector</title> <script src = "https://cdn.staticfile.org/jquery/3.2.1/jquery.min.js"></script> <script> $(document).ready(function() { $(".big").css("background-color", "yellow"); }); </script> </head> <body> <div class = "big" id="div1"> <p>This is first division of the DOM.</p> </div> <div class = "medium" id = "div2"> <p>This is second division of the DOM.</p> </div> <div class = "small" id = "div3"> <p>This is third division of the DOM</p> </div> </body> </html>