1、打开网页开发工具，新建一个HTML文件
3、编写CSS：复选框的样式
5、最好打开浏览器预览效果，满意保存即可！
6、完整代码：<!DOC哌囿亡噱TYPE html><html><head><meta charset="UTF-8"&爿讥旌护gt;<meta name="viewport" content="width=device-width, initial-scale=1.0"><meta http-equiv="X-UA-Compatible" content="ie=edge"><title>CSS怎么修改表单复选框checkbox的样式</title><style type="text/css">#fxk{width: 16px; height: 16px; background-color: #fff; border: 1px solid #c9c9c9; border-radius: 2px;color: #fff; text-align: center; line-height: 15px;-webkit-appearance:none; appearance:none; outline: none;}#fxk[type="checkbox"]:hover{ border: 1px solid #43adea;}#fxk:checked {color: #fff;background-color: #43adea; border: 1px solid #43adea;}#fxk:after {content: "\2713";}</style></head><body style="padding: 50px;"><label>原始复选框</label><input type="checkbox" value="复选框" /><label>修改后复选框</label><input type="checkbox" value="复选框" id="fxk" /></body></html>
