等宽col-md-4＆＃39; s

时间：2016-02-08 20:47:45

标签： html css twitter-bootstrap twitter-bootstrap-3

我是编程新手。

我试图让三个col-md-4具有相同的宽度。我假设如果在HTML中正确引用Bootstrap，则不需要CSS。任何建议将不胜感激。

代码：

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/*NAV LOGO*/

.logo { 
text-decoration: none;
color: black; 
}

.logo img { 
margin-left: auto; 
margin-right: auto;
display: block;
}

/*NAV MENU*/

.menu { 
text-align: center;
}

.menu ul li { 
display: inline-block;
list-style-type: none;
margin-left: 20px; 
margin-right: 20px;
}

.menu ul li a:link { 
	text-decoration: none; 
	background: white;
	color: black;
	border: 1px solid black;
	padding-left: 18px; 
	padding-right: 18px; 
	padding-top: 10px; 
	padding-bottom: 10px
	margin-top: 10px;
	text-align: center;
}

.menu ul li a:hover { 
background: blue;
color: white;
}

/*SUPPORTING*/



/*FOOTER*/
.footer ul li { 
	color: white;
	list-style-type: none; 
	margin-left: 20px; 
	margin-right: 20px; 
	display: inline-block;
	margin-top: 20px;
	margin-bottom: 0px; 
} 

.footer .container { 
text-align: center;
background: black; 
height: 100px;
}

.footer ul li a:link { 
	color: white;
	text-decoration: none;
}

.footer p { 
color: white;
margin-top: 0px;
}
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<!DOCTYPE html> 
<html> 

<head>
	<link rel="stylesheet" type="text/css" href="css.css">
	<title>WASTEdar | Waste Management and Recycling in Dar es Salaam, Tanzania</title>
</head> 

<body>

	<!--NAV--> 

<div class="nav">
	<div class="container">
		<div class="logo"> 
			<img src="http://static1.squarespace.com/static/53e6b408e4b0cc1fd4cb6a46/54d8bc16e4b050b6c2864e96/54db5b74e4b00d17d9bb0442/1423661993508/wastedar_logos+(1)-page-001.jpg" style="width:505px; height:85px;" align="center"/> 
			<p align="center"><strong>Waste Management and Recycling in Dar es Salaam, Tanzania</strong></p>
		</div>

		<div class="menu">
		<div class="center">  
		<ul class="nav">
			<li><a href="#">Home</a></li> 
			<li><a href="#">Our Story</a></li>
			<li><a href="#">Programmes</a></li>
			<li><a href="#">Resources</a></li>
			<li><a href="#">Contact Us</a></li>
			<li><a href="#">Blog</a></li>
		</ul> 
	    </div> 
	    </div> 
	</div>	
</div> 

	<!--SUPPORTING--> 

	<div class="supporting"> 
		<div class="container"> 
			<div class="row">
				
				<div class="col-md-4"> 
					<h1>Our Vision</h1>
					<p>We the only NGO operational in Dar es Salaam <br> addressing issues concerning waste management and recycling</p>
					<button type="button" class="btn-btn-default">Learn More</button>
				</div> 
				
				<div class="col-md-4"> 
					<h1>Our Mission</h1> 
					<p>To clean up Dar es Salaam, Tanzania</p>
					<button type="button" class="btn-btn-default">Learn More</button>
				</div> 

				 
				<div class="col-md-4"> 
					<h1>Our Mission</h1> 
					<p>To clean up Dar es Salaam, Tanzania</p>
					<button type="button" class="btn-btn-default">Learn More</button>
				</div>

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

	<!--FOOTER-->

	<div class="footer"> 
		<div class="container">
			<ul class="footer"> 
				<li><a href="#">Home</a></li> 
				<li><a href="#">Our Story</a></li>
				<li><a href="#">Programmes</a></li>
				<li><a href="#">Resources</a></li>
				<li><a href="#">Contact Us</a></li>
				<li><a href="#">Blog</a></li>
		    </ul>
		    	<p align="center">Copyright Joshua Palfreman</p>
		</div> 
    </div> 







</body>



</html>
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1 个答案:

答案 0 :(得分：1)

您需要添加 bootstrap.css 以及 bootstrap.js ，我添加了col-xs-4，以便您可以看到这些列具有相同的宽度小屏幕这样的片段。

段

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/*NAV LOGO*/

.logo {
  text-decoration: none;
  color: black;
}
.logo img {
  margin-left: auto;
  margin-right: auto;
  display: block;
}
/*NAV MENU*/

.menu {
  text-align: center;
}
.menu ul li {
  display: inline-block;
  list-style-type: none;
  margin-left: 20px;
  margin-right: 20px;
}
.menu ul li a:link {
  text-decoration: none;
  background: white;
  color: black;
  border: 1px solid black;
  padding-left: 18px;
  padding-right: 18px;
  padding-top: 10px;
  padding-bottom: 10px margin-top: 10px;
  text-align: center;
}
.menu ul li a:hover {
  background: blue;
  color: white;
}
/*SUPPORTING*/

/*FOOTER*/

.footer ul li {
  color: white;
  list-style-type: none;
  margin-left: 20px;
  margin-right: 20px;
  display: inline-block;
  margin-top: 20px;
  margin-bottom: 0px;
}
.footer .container {
  text-align: center;
  background: black;
  height: 100px;
}
.footer ul li a:link {
  color: white;
  text-decoration: none;
}
.footer p {
  color: white;
  margin-top: 0px;
}
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<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet"/>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>

<!--NAV-->
<div class="nav">
  <div class="container">
    <div class="logo">
      <img src="http://static1.squarespace.com/static/53e6b408e4b0cc1fd4cb6a46/54d8bc16e4b050b6c2864e96/54db5b74e4b00d17d9bb0442/1423661993508/wastedar_logos+(1)-page-001.jpg" style="width:505px; height:85px;" align="center" />
      <p align="center"><strong>Waste Management and Recycling in Dar es Salaam, Tanzania</strong>
      </p>
    </div>

    <div class="menu">
      <div class="center">
        <ul class="nav">
          <li><a href="#">Home</a>
          </li>
          <li><a href="#">Our Story</a>
          </li>
          <li><a href="#">Programmes</a>
          </li>
          <li><a href="#">Resources</a>
          </li>
          <li><a href="#">Contact Us</a>
          </li>
          <li><a href="#">Blog</a>
          </li>
        </ul>
      </div>
    </div>
  </div>
</div>

<!--SUPPORTING-->

<div class="supporting">
  <div class="container">
    <div class="row">

      <div class="col-xs-4 col-md-4">
        <h1>Our Vision</h1>
        <p>We the only NGO operational in Dar es Salaam
          <br>addressing issues concerning waste management and recycling</p>
        <button type="button" class="btn-btn-default">Learn More</button>
      </div>

      <div class="col-xs-4 col-md-4">
        <h1>Our Mission</h1> 
        <p>To clean up Dar es Salaam, Tanzania</p>
        <button type="button" class="btn-btn-default">Learn More</button>
      </div>


      <div class="col-xs-4 col-md-4">
        <h1>Our Mission</h1> 
        <p>To clean up Dar es Salaam, Tanzania</p>
        <button type="button" class="btn-btn-default">Learn More</button>
      </div>

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

<!--FOOTER-->

<div class="footer">
  <div class="container">
    <ul class="footer">
      <li><a href="#">Home</a>
      </li>
      <li><a href="#">Our Story</a>
      </li>
      <li><a href="#">Programmes</a>
      </li>
      <li><a href="#">Resources</a>
      </li>
      <li><a href="#">Contact Us</a>
      </li>
      <li><a href="#">Blog</a>
      </li>
    </ul>
    <p align="center">Copyright Joshua Palfreman</p>
  </div>
</div>
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