为啥这个右侧按钮给了 right：0 无效啊？
<!DOCTYPE html><html lang="en"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> <style> * { margin: 0; padding: 0; list-style: none; text-decoration: none; } div { width: 400px; height: 221px; margin: 0 auto; position: relative; } div ul { width: 2500px; position: absolute; left: 0; } div ul li { float: left; } div ul li img { width: 400px; vertical-align: top; } div a { position: absolute; width: 50px; height: 50px; left: 0; background-color: rgba(0, 0, 0, .3); margin-top: -25px; top: 50%; border-radius: 50%; font-size: 35px; text-align: center; line-height: 50px; } div a.rightBtn { right: 0; } </style></head> <body> <div> <ul> <li><img src="./images/0.jpg" alt=""></li> <li><img src="./images/1.jpg" alt=""></li> <li><img src="./images/2.jpg" alt=""></li> <li><img src="./images/3.jpg" alt=""></li> <li><img src="./images/4.jpg" alt=""></li> </ul> <a class="leftBtn" href="javascript:;"><</a> <a class="rightBtn" href="javascript:;">></a> </div></body> </html>
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好帮手慕星星
2022-09-13 09:56:54
恭喜解决一个难题，获得1积分~
来为老师/同学的回答评分吧
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