html - Vertically and Horizontally Aligning in CSS -


i'm having trouble getting form align both vertically , horizontally.

i don't mind if doesn't support ie--i plan on implementing ie detection script tell user use different browser--but support firefox , chrome must.

here have:

html

<!doctype html> <head>     <link rel="stylesheet" type="text/css" href="global.css">     <link rel="stylesheet" type="text/css" href="index.css"> </head> <body>     <div id="wrapper">         <div id="logo_div">             <img src="../images/logo.png" id="logo">         </div>          <div id="login">             <form name="searchform" action="checklogin.php" method="post" id="login_form">             <br>                 user name : <input type="text" name="myusername" size="16" /><br>                 password : <input type="password" name="mypassword" /><br>                 <input type="submit" value="login" /><br>             </form>         </div>     </div>     </div> </body> </html>

global css

#wrapper {     position: relative;     max-width: 1024px;     height: 1000px;     margin-left: auto;     margin-right: auto; } #logo_div {     position: relative;     margin-left: auto;     margin-right: auto; }  #logo {     display: block;     position: relative;     margin-left: auto;     margin-right: auto; }

index css

#login {     position: relative;     margin-left: auto;     margin-right: auto; } #login_form {     position: relative;     margin-left: auto;     margin-right: auto; }

any appreciated. thanks

do want this?

try css

#login{     position:absolute;     left:50%;     top:50%;      margin-left:-120px;     margin-top:-60px;      border:1px solid #ccc;     width:240px;     height:120px; }

if want form centered vertically , horizontally, can use css attribute position:absolute; , use left:50%; top:50% align top-left corner of div center of browser. div not centered this. because centered window top left corner. used negative margin half of width , height of div center properly.

hope looking for.

thanks bojangles, suggestion !


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