jQuery UI的Droppable activeClass选项

jQuery UI由使用jQuery、CSS和HTML实现的GUI小工具、视觉效果和主题组成。jQuery UI非常适合为网页构建UI界面。jQuery UI Droppable activeClass选项用于添加在可接受的拖动时将被添加到droppable的类。

语法:

$( ".selector" ).droppable({
  activeClass: "ui-state-highlight"
});

CDN链接：首先，添加你的项目需要的jQuery UI脚本。

<link rel=”stylesheet” href=”//code.jquery.com/ui/1.12.1/themes/smoothness/jquery-ui.css”>
<script src=”//code.jquery.com/jquery-1.12.4.js”></script>
<script src=”//code.jquery.com/ui/1.12.1/jquery-ui.js”></script>

示例:

<!doctype html>
<html lang="en">
  
<head>
    <meta charset="utf-8">
    <link rel="stylesheet" href=
    "//code.jquery.com/ui/1.12.1/themes/smoothness/jquery-ui.css">
    <script src="//code.jquery.com/jquery-1.12.4.js"></script>
    <script src="//code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
    <style>
        h1 {
            color: green;
        }
  
        div {
            color: white;
            display: flex;
            justify-content: center;
            align-items: center;
            text-align: center;
        }
  
        #div2 {
            width: 150px;
            height: 150px;
            background: blue;
        }
  
        #div1 {
            position: absolute;
            left: 250px;
            width: 200px;
            height: 200px;
            background: green;
            color: #fff;
        }
    </style>
</head>
  
<body>
    <h1>GeeksforGeeks</h1>
  
    <h3>jQuery UI Droppable activeClass Option</h3>
  
    <div id="div1">Drop here</div>
    <div id="div2">Drag me</div>
  
    <script>
         $("#div2").draggable();$ ("#div1").droppable({
            activeClass: "ui-state-highlight"
        });
    </script>
</body>
  
</html>

输出:

jQuery UI的Droppable activeClass选项