javascript - How to put this div in center and lock everything else with light blue background -


i have div,

<div id="messagebox" style="display: none; cursor: default">    <asp:dropdownlist id="ddl" runat="server" enableviewstate="true" autopostback="true" onselectedindexchanged="ddl_selectedindexchanged"/> </div>

on click event, showing div using,

$('#messagebox').show();

how can put in center of screen , make background light dark, want dropdown list trigger code behind want disable except div,

i edited html , added inside tabel. it's working fine , stay in center position on window resizing. check below demo

http://jsfiddle.net/nnckt/9/


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