.mask{position:fixedleft:0right:0top:0bottom:0font-size:0text-align:centerbackground:rgba(0,0,0,0.8)}
.mask:after{content:""height:100%}
.mask:after,.main{display:inline-blockvertical-align:middle}
.main{font-size:16px}
<!DOCTYPE html><html>
<head>
<title>框</title>
<meta charset="utf-8">
<style type="text/css">
*{
margin: 0px
padding: 0px
}
#ul1>li{
background: #555
color: #fff
float: left
list-style: none
width: 4em
margin: 1em
text-align: center
cursor: pointer
}
.popBox1{
margin: 50px auto
text-align: center
width: 30em
border: 1px solid red
background: rgb(245,230,230)
z-index: 1000
display: none
}
.popBox1 h4{
margin: 2em 0em
}
.popBox1 span{
display: inline-block
width: 4.5em
line-height: 2em
font-weight: bold
color: #fff
margin: 1em 1em
margin-bottom: 3em
font-size: 1em
background: rgb(201,65,65)
border-radius: 5px
cursor: pointer
}
.clear{
clear: both
}
</style>
<script type="text/javascript" src="http://code.jquery.com/jquery-1.11.1.min.js"></script>
</head>
<body>
<ul id="ul1">
<li>敌法</li>
<li>剑圣</li>
<li>蝮蛇</li>
<li>幻刺</li>
<li>娜迦</li>
<br class="clear"/>
</ul>
<div class="popBox1">
<h4>确定要干掉</h4>
<span onclick="sureDelete(this)">确定</span><span onclick="cancel(this)">取消</span>
</div>
<script type="text/javascript">
$(document).ready(function(){
$("#ul1>li").click(function(){
var txt=$(this).text()
$(".popBox1").children("h4").text('你确定要干掉:'+txt)
$(".popBox1").show()
})
})
function sureDelete(obj){
$(obj).parent().hide()
}
function cancel(obj){
$(obj).parent().hide()
}
</script>
</body>
</html>
