<div id="div" style="">
<input id="inputText" style="" />
<span type="button" id="btn" >查询</span>
</div>
#div{
padding:3px;
position: absolute;
width:300px;
padding: 10px;
right:7px;
z-index:999;
background: #f3f3f3;
border-radius: 2px;
}
#inputText{
line-height:30px;
width: 210px;
border-style:none;
outline: none;
text-indent: 10px;
border-top-left-radius:6px;
border-bottom-left-radius:6px;
border: 1px solid #DBDBDB;
}
#btn{
width: 80px;
line-height:30px;
display: inline-block;
background: #d7d7d7;
text-align: center;
border: 1px solid #DBDBDB;
border-bottom-right-radius: 3px;
border-top-right-radius: 3px;
text-align: center;
}
效果: