在twitter引導頁腳中居中三個div div

Question

我對此很陌生，我試圖在bootstraps頁腳中居中三個div，但他們似乎是居中向左。我正在關閉Twitter Bootstrap框架，並且仍在學習繩索，所以請讓我知道是否有任何我遺漏的東西。謝謝！

HTML

<footer> 
    <div class="footer"> 
    <div class="container narrow row-fluid"> 

     <div class="span3"> 
      <h3>Contact Us!</h3> 
      <p>Have a question or comment? We can help you!</p> 
      <br>by phone: 555-555-5555 
      <br>by mail: info@website.com 
      <br>or by our: <a href="contact.htm">Contact Page</a> 
     </div> 


    <div class="span3"> 
     <a class="brand" href="index.htm"><img src="images/logo.png" alt="South Shore Bicycle and Fitness" align="middle"> </a> 
    </div> 

     <div class="span3"> 
      <h3>Newsletter</h3> 
      <p>Subscribe to our newsletter and get the latest news!</p> 
      <form action="php/mail.php" id="subscribe-form" method="post"> 
      <input type="text" name="email" id="email" placeholder="Your Email Address"> 
      <button type="submit" class="btn btn-primary">Sign Up</button> 
     </form> 
     </div> 

    </div> 
    </div> 
    </footer> 

CSS

.modal-footer { padding: 14px 15px 15px; 
margin-bottom: 0; 
background-color: #f5f5f5; 
border-top: 1px solid #ddd; 
-webkit-border-radius: 0 0 6px 6px; 
-moz-border-radius: 0 0 6px 6px; 
border-radius: 0 0 6px 6px; 
-webkit-box-shadow: inset 0 1px 0 #ffffff; 
-moz-box-shadow: inset 0 1px 0 #ffffff; 
box-shadow: inset 0 1px 0 #ffffff; 
*zoom: 1; 
vertical-align: middle; 
} 

.modal-footer:before, .modal-footer:after { 
display: table; 
content: ""; 
vertical-align: middle 
} 

.modal-footer:after { 
clear: both; 
vertical-align: middle 
} 

.modal-footer .btn { 
float: right; 
margin-left: 5px; 
margin-bottom: 0; 
vertical-align: middle 
} 

.span3 { 
width: 166px; 
} 

Answer 1

您可以使用保證金：0汽車;以中心元素。嘗試添加此規則，以你的CSS：

.span3{ 
    margin: 0 auto 
} 

然後，也給包含span3的div一個人的寬度：

.container{ 
    width: 515px /* The actual width may need to be higher or lower than this */ 
}