html 搜索框底下的线怎么断开,下拉列表框没有在搜索框下面，而是在页面的底部，这是为什么呢，要怎么解决这个问题？...

bing search

• 手机
• 手机游戏
• 手机APP
• 手机铃声
• 手机主题

$('#search-input').bind('keyup',function(){

$('#search-suggest').show().css({

top:$('#search-form').offset().top+('#search-form').height,

left:$('#search-form').offset().left,

position:'absolute'

});

})

body{

background:#333;

}

.bg{

background:url(image/river.jpg)no-repeat center center;

width:100%;

height:768px;

position:relative;

}

.logo{

background:url(image/logo.png);

width:107px;

height:53px;

margin-left:100px;

margin-bottom:40px;

}

.search-input-text{

border:0;

float:left;

height:27px;

width:350px;

line-height:27px;

outline:none;

}

.search-input-button{

border:0;/*去掉边框的颜色*/

background:url(image/search-button.png);

width:29px;

height:29px;

float:left;

}

.form{

float:left;

padding:5px;

background-color:#fff;

}

.search-box{

position:absolute;

top:200px;

left:400px;

}

.search-form{

width:388px;

height:39px;

}

.suggest{

width:388px;

background-color:#fff;

border:1px solid #999;

}

.suggest ul{

list-style:none;

margin:0;

padding:0;

}

.suggest ul li{

margin:8px;

font-size:14px;

line-height:25px;

cursor:pointer;

}

.suggest ul li:hover{

text-decoration:underline;

background-color:#e5e5e5;

}