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Editorial Team
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Asked: 2026-05-26T18:12:24+00:00

I’m using VS2010,C# to develop my ASP.NET web app, I’m using a .js file

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I’m using VS2010,C# to develop my ASP.NET web app, I’m using a .js file to display some small tool tips in my program, there is a CSS file also that should be used in my ASPX files so that this tooltip is displayed correctly, but when I use this CSS all my page (including tables) are displayed at left side of page while I’ve aligned them to be at the center of page, I’m not an expert in CSS files, how can I fix this problem, here is my CSS file:

    * {margin:0; padding:0}
    body {font:12px/1.5 Tahoma, Arial, Helvetica, sans-serif; background:#FFF}
    #text {margin:50px auto; width:500px}
    .hotspot {color:#900; padding-bottom:1px; border-bottom:1px dotted #900; cursor:pointer}

    #tt {position:absolute; display:block; background:url(images/tt_left.gif) top left no-repeat}
    #tttop {display:block; height:5px; margin-left:5px; background:url(images/tt_top.gif) top right no-repeat; overflow:hidden}
    #ttcont {display:block; padding:2px 12px 3px 7px; margin-left:5px; background:#666; color:#FFF}
#ttbot {display:block; height:5px; margin-left:5px; background:url(images/tt_bottom.gif) top right no-repeat; overflow:hidden}
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1 Answer

  1. Editorial Team

    #tt is set to position: absolute. This is probably the cause of your problems since you are not telling it what position you want so I suspect it is defaulting to top left.

    What CSS are you using to align things to the center? And what is your HTML structure? I am assuming that #tt is ta main container on your page…

    To actually find out which part of your CSS is wrong though then the easiest way of doing it is to just remove each line/property from your CSS file and retest until the positioning stops dying.

    Also if that CSS is there purely for your tooltip then you probably shouldn’t be using a * selector. Something more specific like .Tooltip * would minimise any interference from anyting outside.

    And in general if styles are meant to only apply to one given piece of content I would use a class (or id) on that content as a prefix to every selector to guarantee that you cannot possibly change anything outside of that.

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