<!DOCTYPE html><html lang="en"><head> ???<meta charset="UTF-8"> ???<title>Bootstrap 3</title> ???<meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0"> ???<meta http-equiv="X-UA-Compatible" content="IE=edge"> ???<link rel="stylesheet" href="bootstrap/css/bootstrap.min.css"> ???<link rel="stylesheet" href="css/style.css"></head><body> ???<script src="bootstrap/jquery-3.3.1.min.js"></script> ???<script src="bootstrap/js/bootstrap.min.js"></script></body></html>
Bootstrap 3 html结构
原文地址：https://www.cnblogs.com/cuilichao/p/9602388.html