js+csss实现的一个带复选框的下拉框

效果图：

css：

 
 
ul li{ 
list-style: none; 
padding:0px; 
margin: 0px; 
} 

.select_checkBox{ 
border:0px solid red; 
position: relative; 
display:inline-block; 


} 
.chartQuota{ 
height:23px; 
float:left; 
display:inline-block; 
border:0px solid black; 
position: relative; 
} 

.chartOptionsFlowTrend{ 
z-index:300; 
background-color:white; 
border:1px solid gray; 
display:none; 
position: absolute; 
left:0px; 
top:23px; 
width:150px; 
} 
.chartOptionsFlowTrend ul{ 
float:left; 
padding: 0px; 
margin: 5px; 
} 
.chartOptionsFlowTrend li{ 
 
display:block; 
position: relative; 
left:0px; 
margin: 0px; 
clear:both; 
} 
.chartOptionsFlowTrend li *{ 
float:left; 
} 
a:-webkit-any-link { 
color: -webkit-link; 
text-decoration: underline; 
cursor: auto; 
} 
.chartQuota p a { 
float: left; 
height: 21px; 
outline: 0 none; 
border: 1px solid #ccc; 
line-height: 22px; 
padding: 0 5px; 
overflow: hidden; 
background: #eaeaea; 
color: #313131; 
text-decoration: none; 
} 

.chartQuota p { 
margin:0px; 
folat:left; 
overflow: hidden; 
height: 23px; 
line-height:24px; 
display: inline-block; 
} 
.chartOptionsFlowTrend p { 
height: 23px; 
line-height: 23px; 
overflow: hidden; 
position: relative; 
z-index: 2; 
background: #fefbf7; 
padding-top: 0px; 
display: inline-block; 
} 
.chartOptionsFlowTrend p a { 
border: 1px solid #fff; 
margin-left: 15px; 
color: #2e91da; 
} 

html：

 
 
 
选择指标 
 
 
 


 
 
 
浏览次数（PV） 
 
独立访客（UV） 
 
IP 
 
新独立访客 
 
访问次数 
 
 
 
确定取消 
 
 

js：