粗仿gmail按钮-无图片却有立体效果

/*搜索数据框*/
.search_ipt
{
width:275px;
height:20px;
padding-top:3px;
font-size: 14px;
border-style: inset;
border-width: 1px;
border-bottom-color: #555;
border-right-color: #555;
}
/*聚焦效果*/
.search_ipt:FOCUS
{
border-style:solid;
border-width:2px;  
border-color:#6694E3;
}

/*模拟立体按钮*/
.btn_m
{
position: relative;
z-index:1;
height:20px;
width:80px;
border: 1px solid #CCC;
text-align: center;
cursor:pointer;
-moz-border-radius:3px; /*简单点针对FF圆角*/
}
.btn_m:hover
{
border-color: #888;
}
.btn_m .top
{
position: absolute;
z-index:-1;
top:0px;
left:0px;
height:10px;
width:100%;
background-color: #F9F9F9;
}
.btn_m .bot
{
position: absolute;
z-index:-1;
top:10px;
left:0px;
height:10px;
width:100%;
background-color: #EEEEEE;
}

 上面是样式，下面是使用方法：

 

<div style="padding-top:35px;">
<input type="text" class="search_ipt fleft"/>
<div class="btn_m fleft" style="margin-top:2px;margin-left:5px;"><div class="top">&nbsp;</div><div class="bot">&nbsp;</div>搜索内容</div>
<div class="btn_m fleft" style="margin-top:2px;margin-left:5px;"><div class="top">&nbsp;</div><div class="bot">&nbsp;</div>搜索标题</div>
<div style="float:left;margin-top:2px;margin-left:5px;"><a href="javascript:_();">高级搜索</a></div>
</div>

 

效果图：