<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style>
			#buttons>button {
				border: none;
				outline: none;
				width: 120px;
				height: 40px;
				font: 22px/40px Arial;
				background-color: red;
				color: white;
			}
		</style>
	</head>
	<body>
		<div id="buttons">
			<button><input type="checkbox">苹果</button>
			<button><input type="checkbox">香蕉</button>
			<button><input type="checkbox">草莓</button>
			<button><input type="checkbox">蓝莓</button>
			<butt