我试图在我的项目中实现引导程序..但是 col-md-3 占用了容器的整个宽度
以下是代码：-
<!DOCTYPE html>
<html>
<head>
<title>Home page </title>
</head>
<body>
<div class="container">
<div class="row">
<div class="col-md-4-offset-4">
<div class="avatar">
<h1>Special feature</h1>
</div>
</div>
</div>
</div>
<div class="containe-fluid">
<div class="row" >
<div class="col-md-3" style="width:25%;">
<div class="box">
<img src="http://cdn.shopify.com/s/files/1/0695/9547/products/Dell_Latitude_E4300_Laptop_1024x1024.jpeg?v=1421189962" width="300" height="300">
<p>
<a href="">Dell Latitude E4300 Refurbished Laptop<br> $169
</p>
<button> Buy</button>
</div>
</div>
<div class="col-md-3" style="width:25%;">
<div class="box">
<img src="http://cdn.shopify.com/s/files/1/0695/9547/products/HP_255_Ubuntu_Laptop_1024x1024.jpeg?v=1421190061" width="300" height="300">
<p>
<a href="#">HP 255 UBUNTU</a><br>$229.00
</p>
<button> Buy</button>
</div>
</div>
<div class="col-md-3" style="width:25%;">
<div class="box">
<img src="http://cdn.shopify.com/s/files/1/0695/9547/products/621591-645880-800_large.jpeg?v=1421190099" …