<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>bootstrap学习第一天</title>
<link rel="stylesheet" href="bootstrap-3.3.7-dist/css/bootstrap.css">
<script src="bootstrap-3.3.7-dist/js/jquery.js"></script>
<script src="bootstrap-3.3.7-dist/js/bootstrap.js"></script>
<script src="bootstrap-3.3.7-dist/js/holder.min.js"></script>
<meta name="viewport" content="width=device-width, initial-scle=1, maximum-scale=1, user-scalable=no">
<style>
.container {
height: 300px;
}
.row {
margin-bottom: 15px;
}
</style>
</head>
<body>
<div class="container">
<h1>BootStrap前端框架</h1>
<div class="row">
<div class="col-md-3">
<img src="img/img_logo01.jpg" width="100%">
<!--<img src="holder.js/100px263" alt="">-->
</div>
<div class="col-md-3">
<img src="img/img_logo01.jpg" width="100%">
</div>
<div class="col-md-3">
<img src="img/img_logo01.jpg" width="100%">
</div>
<div class="col-md-3">
<img src="img/img_logo01.jpg" width="100%">
</div>
</div>
<div class="row">
<div class="col-md-3">
<img src="img/img_logo01.jpg" width="100%">
<!--<img src="holder.js/100px263" alt="">-->
</div>
<div class="col-md-3">
<img src="img/img_logo01.jpg" width="100%">
</div>
<div class="col-md-3">
<img src="img/img_logo01.jpg" width="100%">
</div>
<div class="col-md-3">
<img src="img/img_logo01.jpg" width="100%">
</div>
</div>
<div class="row">
<div class="col-md-3">
<img src="img/img_logo01.jpg" width="100%">
<!--<img src="holder.js/100px263" alt="">-->
</div>
<div class="col-md-3">
<img src="img/img_logo01.jpg" width="100%">
</div>
<div class="col-md-3">
<img src="img/img_logo01.jpg" width="100%">
</div>
<div class="col-md-3">
<img src="img/img_logo01.jpg" width="100%">
</div>
</div>
<div class="row">
<div class="col-md-3">
<img src="img/img_logo01.jpg" width="100%">
<!--<img src="holder.js/100px263" alt="">-->
</div>
<div class="col-md-3">
<img src="img/img_logo01.jpg" width="100%">
</div>
<div class="col-md-3">
<img src="img/img_logo01.jpg" width="100%">
</div>
<div class="col-md-3">
<img src="img/img_logo01.jpg" width="100%">
</div>
</div>
<div class="row">
<div class="col-md-3">
<img src="img/img_logo01.jpg" width="100%">
<!--<img src="holder.js/100px263" alt="">-->
</div>
<div class="col-md-3">
<img src="img/img_logo01.jpg" width="100%">
</div>
<div class="col-md-3">
<img src="img/img_logo01.jpg" width="100%">
</div>
<div class="col-md-3">
<img src="img/img_logo01.jpg" width="100%">
</div>
</div>
<div class="row">
<div class="col-md-3">
<img src="img/img_logo01.jpg" width="100%">
<!--<img src="holder.js/100px263" alt="">-->
</div>
<div class="col-md-3">
<img src="img/img_logo01.jpg" width="100%">
</div>
<div class="col-md-3">
<img src="img/img_logo01.jpg" width="100%">
</div>
<div class="col-md-3">
<img src="img/img_logo01.jpg" width="100%">
</div>
</div>
</div>
</body>
</html>
图片占位符生成器:holder.js
<img src="holder.js/100px263" alt="">中,生成一个大小是100px263的图片,p表示百分比