如何修改某些引導程序元素？

我正在爲我的高中機器人團隊開發一個網站。我有2個jumbotron元素，但我需要修改其中一個jumbotron元素而不更改其他元素。我該怎麼做呢？如何修改某些引導程序元素？

該網站是www.robotichive3774.com

<!DOCTYPE html> 
<html> 
<head> 

<title>Robotics Team 3774 Home</title> 

<!-- Link to stylesheet --> 
<link rel="stylesheet" type="text/css" href="bootstrap/css/bootstrap.css"> 
<link rel="stylesheet" type="text/css" href="css/index1.css"> 


<!-- Mobile Scaling --> 
<meta name="viewport" content="width=device-width, initial-scale=1"> 

</head> 

<body> 
<!-------------------- UNIFORM CODE -------------------------> 
<!-- Navbar --> 

<div class="navbar navbar-inverse navbar-fixed-top" role="navigation"> 
    <div class="container"> 
     <div class="navbar-header"> 
      <a class="navbar-brand" href="/Home">Team 3774</a> 
     </div> 
     <div class="navbar-collapse collapse" style="height: 0.866667px;"> 
      <ul class="nav navbar-nav"> 
       <li><a href="/Team Bio">Team Bio</a></li> 
       <li><a href="/Our Robot">Our Robot</a></li> 
       <li><a href="/Our Coach">Our Coach</a></li> 
       <li><a href="/Gallery">Gallery</a></li> 
       <li><a href="/Outreach">Outreach</a></li> 
       <li><a href="/Youtube">Youtube</a></li> 
      </ul> 
     </div> 
    </div> 
</div> 

<!-- Banner --> 
<div class="jumbotron"> 
    <img src="/Images/Banner.png" class="img-responsive" alt="Responsive image"> 
</div> 
<!-----------------------------------------------------------> 

<div class="jumbotron"> 
    <h1>Team 3774 Member Bio</h1> 
    <p>Here you can find links to every member with some information on each of them.</p> 
</div> 
<div class="container"> 
    <div class="row"> 
     <div class="col-md-4"> 
      <h2>Abanoub Boules</h2> 
      <p>Team Captain, Engineer, Coder</p> 
      <button type="button" class="btn btn-default">Read More</button> 
     </div> 
     <div class="col-md-4"> 
      <h2>Andre Bernardo</h2> 
      <p>Head Engineer, Assistant Captain</p> 
      <button type="button" class="btn btn-default">Read More</button> 
     </div> 
     <div class="col-md-4"> 
      <h2>Leo Scarano</h2> 
      <p>Head Coder, Head Web-master</p> 
      <button type="button" class="btn btn-default">Read More</button> 
     </div> 
     <div class="col-md-4"> 
      <h2>Andrew Wojtkowski</h2> 
      <p>Coder, Web-master, Engineer</p> 
      <button type="button" class="btn btn-default">Read More</button> 
     </div> 
     <div class="col-md-4"> 
      <h2>Mina Hanna</h2> 
      <p>Engineer, Coder</p> 
      <button type="button" class="btn btn-default">Read More</button> 
     </div> 
     <div class="col-md-4"> 
      <h2>Kenneth Rebbecke</h2> 
      <p>Engineer, Documenter</p> 
      <button type="button" class="btn btn-default">Read More</button> 
     </div> 
     <div class="col-md-4"> 
      <h2>Kristen Kaldas</h2> 
      <p>Coder, Head Documenter</p> 
      <button type="button" class="btn btn-default">Read More</button> 
     </div> 
     <div class="col-md-4"> 
      <h2>Melanie Aguilar</h2> 
      <p>Secretary, Mascot</p> 
      <button type="button" class="btn btn-default">Read More</button> 
     </div> 
     <div class="col-md-4"> 
      <h2>Anish Patel</h2> 
      <p>Engineer, Head 3D Modelling</p> 
      <button type="button" class="btn btn-default">Read More</button> 
     </div> 
     <div class="col-md-4"> 
      <h2>Furhan Ashraf</h2> 
      <p>Financial Advisor, Engineer</p> 
      <button type="button" class="btn btn-default">Read More</button> 
     </div> 
    </div> 
</div> 


</body> 
</html>

我需要對網站含有這些元素的頂部的超大屏幕元素，但我不能應用到第二超大屏幕這些元素。

.padding 
{ 
    padding-left:0; 
    padding-right:0; 
    padding-bottom:0; 
}

來源

2014-10-28 Hive Voltage

添加id selector給你願意，你挑出一個，比如id="top-jumbotron"

<!-- Banner --> 
<div id="top-jumbotron" class="jumbotron"> 
    <img src="/Images/Banner.png" class="img-responsive" alt="Responsive image"> 
</div>

然後申請使用ID選擇CSS，：

#top-jumbotron { 
    padding-left:0; 
    padding-right:0; 
    padding-bottom:0; 
}

請記住，一個ID在頁面上必須是唯一的，這意味着你只能有一個#top-jumbotron，一個#bottom-jumbotron等。它們對於挑出uniq需要特定樣式或其他方法的元素應用於它們。

ID選擇由主題標籤#表示，並且必須是唯一的頁面
示例：#top-jumbotron

類選擇由週期.表示，並且可以被施加到一個或多個元件在
頁面示例：.jumbotron

吳國良

.jumbotron:first-child 
{ 
    padding-left:0; 
    padding-right:0; 
    padding-bottom:0; 
}

然而，對於你的情況我會建議使用一個特定的目標ID，所以你知道它總是被應用到：伊利，您可以通過使用:first-child僞選擇這樣挑出頁面上的第.jumbotron類正確的jumbotron。

來源

2014-10-28 23:22:09 Axel

如何修改某些引導程序元素？

回答

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