<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title></title> <style type="text/css"> *{ margin: 0; padding: 0; } label{ position: relative; float: left; width: 100px; height: 100px; border: 2px solid; overflow: hidden; /*变成圆形*/ border-radius: 50%; } label > span{ position: absolute; left: 0; top: 0; bottom: 0; right: 0; } input{ position: absolute; top: -50px; left: -50px; } input:checked +span{ background-color: palevioletred; } </style> </head> <body> <label > <input type="radio" name="button" /> <span></span> </label> <label > <input type="radio" name="button" /> <span></span> </label> <label > <input type="radio" name="button" /> <span></span> </label> </body> </html>
原文：https://www.cnblogs.com/xuanxuanya/p/11882801.html