自定义的div弹出窗口

自定义一个上下左右居中的div窗口

/* 自定义DIV弹窗样式，是窗口居中 */

.winwarin{

position:absolute;

top:50%;

left:50%;

width:200px;

height:100px;

margin-top:-50px;

margin-left:-100px;

/* border:1px solid red; */

line-height:30px;

font-size:16px;

text-align:center;

}

<!--javascript部分-->

<script type="text/javascript">

function winwarin(v)

{

message_box.style.visibility='visible';

//创建灰色背景层

procbg = document.createElement("div");

procbg.setAttribute("id","mybg");

procbg.style.margin="0";

procbg.style.overflowX="auto";

procbg.style.background = "#000";

procbg.style.width = "100%";

procbg.style.height = "100%";

procbg.style.position = "absolute";

procbg.style.top = "0";

procbg.style.left = "0";

procbg.style.zIndex = "500";

procbg.style.opacity = "0.2";

procbg.style.filter = "Alpha(opacity=20)";

//背景层加入页面

document.body.appendChild(procbg);

document.body.style.overflow = "hidden";

document.getElementById("msg").innerText=v;//.innerHTML

}

//关闭功能

function closeProc()

{

message_box.style.visibility='hidden';

procbg.style.visibility = "hidden";

}

</script>

<!--信息提示层-->

<div class="winwarin" id="message_box" style="position:absolute;

/* left:350px;top:160px; */

width:300px;height:150px;

filter:dropshadow(color=#666666,offx=3,offy=3,positive=2);

z-index:1000; visibility:hidden">

<div id= "message" style="border:1px #95BDD4 solid;width:95%; height:95%; background:#fff; color:#036; font-size:14px; line-height:150%; border-top-left-radius: 7px;border-top-right-radius: 7px;
border-bottom-right-radius: 7px;border-bottom-left-radius: 7px;">

<!-- DIV弹出状态行：标题、关闭按钮 -->

<div style="background:#95BDD4; height:15%;font-family:Verdana, Arial, Helvetica, sans-serif;font-size:12px; padding:3 5 0 5; color:#03F" >

<span style="display:inline;width:100px; text-align:left;font-size:140%; float:left; font-weight:bold">提示信息</span>

<div style="display:inline; cursor:pointer" onclick="closeProc()">

<span style="float:right;font-size:140%">×</span></div>

</div>

<div style="text-align:center; padding:40px 0 0 0">

<span id="msg" style="font-size:13px;"></span>

</div>

</div>

</div>

弹出窗口触发器：

<input type="file" class="medium"/> <img src="img/new/warin.png" alt="提醒" width="20" height="20" style="text-align: center;" onclick="winwarin('上传文件必须为光合有效辐射')"/>