我编写了一个带有三个链接的导航栏.导航栏应该是响应的,这意味着如果窗口变得足够小,链接应该消失(就像它们那样),并且应该出现一个带有三条水平线的新按钮(没有).
<nav class="navbar navbar-fixed-top" role="navigation">
<div class="navbar-inner">
<div class="container">
<!-- Brand and toggle get grouped for better mobile display -->
<div class="navbar-header">
<button type="btn btn-navbar" class="navbar-toggle"
data-toggle="collapse"
data-target=".navbar-ex1-collapse">
<span class="sr-only">Toggle navigation</span> <span
class="icon-bar"></span> <span
class="icon-bar"></span> <span
class="icon-bar"></span>
</button>
<a class="navbar-brand" href="/server">APL</a>
</div>
<!-- Collect the nav links, forms, and other content for toggling -->
<div
class="collapse navbar-collapse navbar-ex1-collapse">
<ul class="nav navbar-nav">
<li class="active"><a href="impressum.html">Impressum</a></li>
<li class="active"><a href="documentation.html">Documentation</a></li>
</ul>
</div>
</div>
</div>
</nav>
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为什么以下JSFiddle演示中的按钮保持不可见(相同的标记)?
css navbar responsive-design twitter-bootstrap twitter-bootstrap-3
我有以下html:
<span id="spanus">
<a href="#">child1</a>
<a href="#">child2</a>
<a href="#">child3</a>
</span>
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和css:
span{
background: gray;
border: 2px solid #eaeaea;
display: inline-block;
margin: 40px;
}
span:hover{
background: yellow;
border: 2px solid #fbfbfb;
}
a{
padding: 10px;
display: inline-block;
}
span a:hover{
color: #fff;
background: red;
}
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我的问题是当我悬停跨度时,我怎样才能将所有3个孩子悬停在跨度上
谢谢.
我需要在我的UL中定位第二个孩子.这是我的html代码和样式应用
HTML:
<ul class="latestpost">
<li class="clearfix">
<time datetime="2014-10-22T19:33">22<span class="month">Oct</span></time>
<h4><a href="#" rel="bookmark" title="Title</a></h4>
<div class="excerpt">
sometxt...
</div>
</li>
/*I want to target bg of this li below, it is also li of the same ul as first li in my html */
<li class="clearfix">
<time datetime="2014-10-22T09:16">22<span class="month">Oct</span></time>
<h4><a href="#" rel="bookmark" title="Permanent Link to title</a></h4>
<div class="excerpt">
sometxt...
</div>
</li>
</ul>
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CSS:
.latestpost li time {
background:#d5176f;
border-right: 1px solid #d5176f;
border-bottom: 1px solid #d5176f;
color:#fff;
}
ul.latestpost li time:nth-child(2) { …
Run Code Online (Sandbox Code Playgroud) class BadFoodException extends Exception{
//Do something
}
class Reader {
private String food1;
private String food2;
public static void main(String args[])
{
Reader m = new Reader(args);
for (int i=0; i<args.length; i++){
try
{
m.checkfood(args[i]);
}
catch(BadFoodException e){System.out.println(args[i]+ " caught");}
}
}
private Reader(String [] args){
food1=args[0];
food2=args[1];
}
void checkfood(String food) throws BadFoodException
{ if( food == "banana")
throw new BadFoodException();
System.out.println(food + " passed through.");
}
}
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我正在通过命令行传递两种食物 - 香蕉和芒果.当食物是香蕉时,checkfood方法应该抛出异常..芒果应该通过.然而两者都是通过而不是?为什么?