jquery制作居中遮罩层效果分享_jquery

shadow.js
代码如下:
shadow_list=[];
function showAddTopic(cb){
var input_container=$('#content-container-templet').clone();
input_container.removeAttr('id');
var shadow=$('').addClass('shadow-wrapper').append(input_container);
shadow.appendTo(document.body);
shadow_list.push(shadow);
$('.sure',shadow).on('click',function(){
var val=$('.input-li input',shadow).val();
cb(val);
hideAddTopic();
});
$('.cancel',shadow).on('click',function(){
hideAddTopic();
});
}

function hideAddTopic(){
if(shadow_list.length>0){
var shadow=shadow_list.pop();
shadow.remove();
}
}

component2.css
代码如下:
html,body{
padding:0px;
margin: 0px;
width: 100%;
height: 100%;
overflow:hidden;
}
ul,li{
padding:0px;
margin: 0px;
list-style:none;
}
input,textarea{
vertical-align:middle;
border:none;
}
.layout-container{
position:absolute;
top:0px;
height:100%;
overflow:auto;
}
.left-container{
left: 0px;
width:20%;
border:solid 5px #52BE7F;
}
.right-container{
right:0px;
width:80%;
}
.shadow-wrapper{
position: absolute;
width:100%;
height: 100%;
}
.topic-title li span{
height:30px;
line-height:30px;
vertical-align:middle;
}
.topic-title .fun{
float:right;
}
.topic-input-div{
position: absolute;
left: 50%;
top:50%;
height:200px;
width: 400px;
margin-top:-120px ;
margin-left:-210px;
padding:20px 10px;
}
.topic-input-ul{
vertical-align: middle;
position:absolute;
width:380px;
height:2em;
left: 50%;
top:50%;
margin-top: -1em;
margin-left: -190px;
}
.topic-input-ul li{
line-height: 2em;

display:inline-block;
*display:inline;
}
.topic-input-ul .input-li{
width:40%;
}
.topic-input-ul .btn-li{
width: 15%;
}