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<!DOCTYPE html><html lang="en"><head> <!--单选框样式--> <meta charset="UTF-8"> <title>Title</title> <style type="text/css"> .choice{ position: relative; } .choice .radio{ position: relative; display: inline-block; font-weight: 400; color: #0c4757; padding-left: 25px; cursor: pointer; } .choice .radio input{ position: absolute; left: -9999px; } .choice .radio i{ display: block; position: absolute; top: 6px; left: 0; width: 15px; height: 15px; outline: 0; border: 1px solid #666; border-radius: 50%; transition: border-color .3s; -webkit-transition: border-color .3s; } .choice .radio input:checked+i{ border-color: #0c4757; } .choice .radio input+i:after{ position: absolute; content: ''; top: 0; left: 0; width: 100%; height: 100%; border-radius: 50%; background-color: red; opacity: 0; transition: opacity .1s; -webkit-transition: opacity .1s; } .choice .radio input:checked+i:after{ opacity: 1; } </style></head><body><div class="choice"> <label class="radio">在校生<input type="radio" name="radio" value="1" checked><i></i></label> <label class="radio">非在校生<input type="radio" value="2" name="radio"><i></i></label></div></body></html>