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在实际网页开发中,手风琴出现频率也居高。 简单地做了一个手风琴,但觉得它的过渡效果没实现,内容列表出现得很突兀,效果图如下: 实现代码如下: <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>手风琴</title> <style> body, ul { padding: 0; margin: 0; } li { list-style: none; } .nav { width: 150px; height: 310px; margin-top: 30px; margin-left: 50px; font-size: 20px; border: 1px solid #ccc; } .nav>ul>li:nth-child(2n+1) { background-color: cadetblue; } .nav>ul>li:nth-child(2n+2) { height: 160px; display: none; transition: all 1s; } .nav>ul>#selected { background-color: rgb(46, 115, 117); } .nav>ul>li:nth-child(2) { display: block; } </style> </head> <body> <div class="nav"> <ul> <li id="selected">标题1</li> <li> <ul> <li>1</li> <li>2</li> <li>3</li> <li>4</li> </ul> </li> <li>标题2</li> <li> <ul> <li>1</li> <li>2</li> <li>3</li> <li>4</li> </ul> </li> <li>标题3</li> <li> <ul> <li>1</li> <li>2</li> <li>3</li> <li>4</li> </ul> </li> <li>标题4</li> <li> <ul> <li>1</li> <li>2</li> <li>3</li> <li>4</li> </ul> </li> <li>标题5</li> <li> <ul> <li>1</li> <li>2</li> <li>3</li> <li>4</li> </ul> </li> <li>标题6</li> <li> <ul> <li>1</li> <li>2</li> <li>3</li> <li>4</li> </ul> </li> </ul> </div> <script> var title = document.querySelectorAll(".nav>ul>li:nth-child(2n+1)"); for (var i = 0; i < title.length; i++) { title[i].onmouseover = function () { for (var j = 0; j < title.length; j++) { title[j].nextElementSibling.style.display = "none"; title[j].id = ""; } this.id = "selected"; this.nextElementSibling.style.display = "block"; } } </script> </body> </html> 过渡效果加了代码:transition: all 1s; 以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持极客世界。 |
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