zoukankan html css js c++ java

JS_CSS_logon_Mask

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"

"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">

       <head>

              <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>

              <title>test1</title>

              <script>

              function show(){

                     var div=top.document.createElement("div");

                     var divText=document.createTextNode("Saving");

                     div.appendChild(divText);

                     div.style.width=top.document.documentElement.scrollWidth+"px";

                     div.style.height=top.document.documentElement.scrollHeight+"px";

                     div.style.backgroundColor="gray";

                     div.style.position="absolute";

                     div.style.left=0;

                     div.style.top=0;

                     div.style.zIndex=9999;

                     if(top.document.all)

                        div.style.filter = "alpha(opacity=30)";
                            

                  else div.style.opacity = .3;

                     top.document.getElementById("ddd").appendChild(div);

                     alert("真棒");

              }

              </script>

       </head>

       <body>

       <div id="ddd">

       <input type="button" value="click" onclick="show()" />

       </div>    

       </body>

</html>

Version 2

@{
    ViewBag.Title = "Index";
  
}



@section Scripts{
    
    <script type="text/javascript">
    $(document).ready(function () {

   


        $("#btnShow").click(function () {
          //  alert("show");
       

            var div=document.createElement("div");

            //div.style.width=top.document.documentElement.scrollWidth+"px";

            //div.style.height=top.document.documentElement.scrollHeight+"px";

            div.style.width="100px";

            div.style.height="100px";
       

            div.style.backgroundColor="gray";

            div.style.position="absolute";

            div.style.left = top.document.documentElement.scrollWidth/2 + "px";

            div.style.top = document.getElementById("ddd").offsetHeight / 2 + "px";

            div.style.zIndex=80;

            

            document.getElementById("ddd").appendChild(div);

            //*********************************************************************
            var Topdiv = document.createElement("div");

            Topdiv.style.width = "700px";

            Topdiv.style.height = "700px";

            Topdiv.style.backgroundColor = "red";

            Topdiv.style.position = "absolute";

            Topdiv.style.left = 0;

            //Topdiv.style.top = document.getElementById("ddd").offsetHeight /2 + "px";
            Topdiv.style.top = 0;
            Topdiv.style.zIndex = 70;

            if (top.document.all)

                Topdiv.style.filter = "alpha(opacity=30)";

            else Topdiv.style.opacity = .3;


            document.getElementById("ddd").appendChild(Topdiv);

            alert("真棒");

      
        });



    });

</script>

    }



<h2>Index</h2>

    <div id="ddd" style="z-index: 100;">

        <input type="button" id="btnShow" value="click" />
        <h1>hello1111</h1>
        <h1>hello1111</h1>
        <h1>hello1111</h1>
        <h1>hello1111</h1>
        <h1>hello1111</h1>
        <h1>hello1111</h1>
    </div>

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原文地址：https://www.cnblogs.com/MarchThree/p/3840817.html