老师我的导航缩小后就崩了 要怎么改啊
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<title>2-7作业</title>
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<li>水果</li>
</ul>
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专用<span class="caret"></span>
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<ul class="left">
<li class="ti">关系</li>
<li>朋友</li>
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</ul>
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<li class="ti">风味</li>
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<li>水果</li>
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商铺<span class="caret"></span>
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<ul class="left">
<li class="ti">关系</li>
<li>朋友</li>
<li>爱人</li>
<li>姐妹</li>
</ul>
<ul class="left">
<li class="ti">风味</li>
<li>巧克力</li>
<li>水果</li>
</ul>
</ul>
</li>
</ul>
</div>
</div>
</nav>
<div class="tubiao">
<ul>
<li><a href="#"><span class="glyphicon glyphicon-search tupian"></span></a>
<div class="sousuo">
<form>
<input type="text" name="text"><button class="btn">搜</button>
</form>
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</li>
<li><a href="#"><span class="glyphicon glyphicon-user tupian"></span></a>
<div class="biaodan">
<form>
<div class="form-group">
<label for="email">Email</label>
<input type="eamil" name="email" id="email" class="form-control">
</div>
<div class="form-group">
<label for="password">Password</label>
<input type="password" name="password" id="password" class="form-control">
</div>
<button class="button">登录</button>
<div class="check">
<input type="checkbox" name="jizhumima"><span>记住</span>
</div>
<div class="p">新用户 ? <span>注册 | </span>忘记密码?</div>
</form>
</div>
</li>
<li><a href="#"><span class="glyphicon glyphicon-shopping-cart tupian"></span></a>
<div class="kong">
<p>$0.00(0)</p>
<button class="btn btn-group-justified">空</button>
</div>
</li>
</ul>
</div>
</div>
</header>
<section><img src="img/"></section>
<script type="text/javascript" src="js/jquery-1.12.4.js"></script>
<script type="text/javascript" src="js/bootstrap.js"></script>
<script type="text/javascript" src="js/2-7.js"></script>
</body>
</html>
*{
padding:0px;
margin:0px;
}
li{
list-style:none;
}
html{
font-size:12px;
}
/*页头*/
header{
box-sizing:border-box;
width:100%;
background-color:#5D4B33;
height:4rem;
}
header .container{
width:88%;
margin:0 auto;
}
header img{
float:left;
margin-left:0.5rem;
width:6rem;
height:2.2rem;
margin-top:0.9rem;
margin-right:1rem;
}
header .center>ul{
float:left;
height: 4rem;
}
header .nav-tabs > li{
background-color:#5D4B33;
}
header .nav-tabs > li > a {
border-radius:1px;
height:4rem;
line-height:2.2rem;
color:white;
}
header .center .nav-tabs > li > a .caret{
margin-left:0.8rem;
}
header .dropdown-menu{
width:28rem;
height:12rem;
padding-top:1rem;
padding-left:1.5rem;
}
header a.dropdown-toggle:hover{
background-color:#F07818;
border:none;
}
header .dropdown-menu li{
line-height:1.8rem;
padding-right:4rem;
}
header .dropdown-menu .left{
float:left;
margin-right: 1.5rem;
}
header .dropdown-menu .left .ti{
color:#F07818;
border-bottom:1px solid #ccc;
margin-bottom:0.7rem;
}
header .dropdown-menu .left li:not(:first-child):hover{
cursor:pointer;
color:#F07818;
}
header .center .dropdown .active
{
border:none;
background:#F07818;
}
header .center .nav .open > a,header .center .nav .open > a:hover,header .center .nav .open > a:focus {
background-color:#F07818;
border:none;
}
/*右侧*/
header .tubiao{
position:relative;
float:right;
margin-top:-5.7rem;
}
header .tubiao ul li{float:left;display:inline-block;}
header .tubiao ul li .tupian{width:4rem;height:4rem;color:#fff;text-align:center;line-height:4rem;}
header .tubiao .sousuo{
display:none;
padding-top:1rem;
padding-left:1.5rem;
position:absolute;
top:4rem;
left:-16rem;
height:6rem;
width:19rem;
background:#fff;
border:1px solid #ccc;
}
header .tubiao .sousuo::after{
content:'';
position:absolute;
top:-1.6rem;
left:17rem;
width:0rem;
height:0rem;
border-top:0.8rem transparent solid;
border-left:0.8rem transparent solid;
border-right:0.8rem transparent solid;
border-bottom:0.8rem #fff solid;
}
header .tubiao .sousuo form{
height:2.5rem;
overflow:hidden;
}
header .tubiao .sousuo input{
border:1px solid #F07818;
width:11rem;
height:2.5rem;
}
header .tubiao .sousuo .btn{
border:none;
width:3.5rem;
line-height:0.9rem;
color:#fff;
height:2.7rem;
border-radius:0px;
background:#F07818;
}
header .tubiao .sousuo .btn{
border:none;
width:4rem;
line-height:0.9rem;
color:#fff;
height:2.7rem;
border-radius:0px;
background:#F07818;
}
header .tubiao .biaodan{
display:none;
border:1px solid #ccc;
padding:0.5rem 0.8rem 0.8rem;
width:20rem;
height:18.5rem;
position:absolute;
top:4rem;
left:-12rem;
}
header .tubiao .biaodan::after{
content:'';
position:absolute;
top:-1.6rem;
left:17rem;
width:0rem;
height:0rem;
border-top:0.8rem transparent solid;
border-left:0.8rem transparent solid;
border-right:0.8rem transparent solid;
border-bottom:0.8rem #fff solid;
}
header .tubiao .biaodan .form-group{
margin-bottom:0.8rem;
}
header .tubiao .biaodan label{
font-size:1rem;
}
header .tubiao .biaodan input{
height:2.2rem;
}
header .tubiao .biaodan .button{
height:2.2rem;
background:#F07818;
width:100%;
line-height:2.2rem;
border:1px solid #F07818;
color:#fff;
}
header .tubiao .biaodan .button:hover{
background:#fff;
color:#F07818;
}
header .tubiao .biaodan .check{
height:2rem;
position:relative;
}
header .tubiao .biaodan .check input{
width:1rem;
display:inline-block;
}
header .tubiao .biaodan .check span{
font-size:0.8rem;position:absolute;
top:0.9rem;
margin-left: 0.5rem;
}
header .tubiao .biaodan .p{
text-align:center;
margin-top:1rem;
font-size:0.7rem;
}
header .tubiao .biaodan .p span{
color:#F07818;
}
header .tubiao .kong{
display:none;
border:1px solid #ccc;
position:absolute;
top:4rem;
left:-4rem;
text-align:center;
padding:1rem 0.5rem 0.3rem;
width:15rem;
height:8rem;
}
header .tubiao .kong::after{
content:'';
position:absolute;
top:-1.6rem;
left:13rem;
width:0rem;
height:0rem;
border-top:0.8rem transparent solid;
border-left:0.8rem transparent solid;
border-right:0.8rem transparent solid;
border-bottom:0.8rem #fff solid;
}
header .tubiao .kong .btn{
border:1px solid #F07818;
background:#F07818;
color:#fff;
}
header .tubiao .kong .btn:hover{
background:#fff;
color:#F07818;
}
header .container .navbar-default{
background:#5D4B33;
border:none;
}
/*
@media screen and (max-width:700px){
html{
font-size:12px;
}
header .center .dropdown .dropdown-toggle{
display:none;
}
}
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