此前写的那个太复杂了，来点简单的核心
<html> <head> <title></title> <style type="text/css"> * { margin: 0; padding: 0; border: none; } .Bl { width: 600px; height: 540px; margin: 0 auto; position: relative; top: 50%; transform: translateY(-50%); } .Bl > input { width: 20%; height: 40px; position: absolute; cursor: pointer; opacity: 0; } .Bl input:nth-of-type(1){ left: 0%; } .Bl input:nth-of-type(2){ left: 20%; } .Bl input:nth-of-type(3){ left: 40%; } .Bl input:nth-of-type(4){ left: 60%; } .Bl input:nth-of-type(5){ left: 80%; } /*切换效果*/ .Bl input:nth-of-type(1):checked ~ span:nth-of-type(1) { color: white; } /* ~ 选择兄弟元素 */ .Bl input:nth-of-type(2):checked ~ span:nth-of-type(2) { color: white; } .Bl input:nth-of-type(3):checked ~ span:nth-of-type(3) { color: white; } .Bl input:nth-of-type(4):checked ~ span:nth-of-type(4) { color: white; } .Bl input:nth-of-type(5):checked ~ span:nth-of-type(5) { color: white; } .Bl input:nth-of-type(1):checked ~ .pagebox > .pages { } .Bl input:nth-of-type(2):checked ~ .pagebox > .pages { transform: translateY(-100%); } .Bl input:nth-of-type(3):checked ~ .pagebox > .pages { transform: translateY(-200%); } .Bl input:nth-of-type(4):checked ~ .pagebox > .pages { transform: translateY(-300%); } .Bl input:nth-of-type(5):checked ~ .pagebox > .pages { transform: translateY(-400%); } span { display: block; width: 20%; height: 40px; background-color: red; float: left; text-align: center; line-height: 40px; font-size: 20px; } .pagebox,.pages { width: 100%; height: 500px; } .pagebox { overflow: hidden; } .pages { transition: all 0.5s; } .page { width: 100%; height: 100%; text-align: center; font-family: "微软雅黑"; font-size: 30px; line-height: 500px; color: white; } .page1 { background-color: pink; } .page2 { background-color: blue; } .page3 { background-color: red; } .page4 { background-color: green; } .page5 { background-color: black; } </style> </head> <body> <div class="Bl"> <input type="radio" name="btn" checked ><span>1</span> <input type="radio" name="btn" ><span>2</span> <input type="radio" name="btn" ><span>3</span> <input type="radio" name="btn" ><span>4</span> <input type="radio" name="btn" ><span>5</span> <section class="pagebox"> <div class="pages"> <div class="page page1">This is page1</div> <div class="page page2">This is page2</div> <div class="page page3">This is page3</div> <div class="page page4">This is page4</div> <div class="page page5">This is page5</div> </div> </section> </div> </body> </html>