problem positioning a hotspot over an image

Jeff McClellan
Jeff McClellan used Ask the Experts™
on
I'm having a problem positioning a hotspot (should be a rectangle 230px wide by 88px high) over an image in a web page header.  Rather than appearing over top of the image using the coordinates defined in the CSS, it displays right before the image.  What am I doing wrong?

Here's what I have:

HTML

<div class="art-Header">
    <jdoc:include type="modules" name="Search-box" />
    <div class="art-Header-jpeg">
            <a href="http://www.agro-k.com/index.php?option=com_alfcontact&Itemid=148" class="hotspot" title="Contact Us">&nbsp</a>
      </div>
</div>

CSS

div.art-Header-jpeg
{
      position: absolute;
      z-index:-1;
      top: 30;
      left: 0;
      width: 906px;
      height: 150px;
      background-image: url('../images/Header.png');
      background-repeat: no-repeat;
      background-position: center center;
}


div.art-Header-jpeg .hotspot a
{
    width: 130px; height: 88px;
    position: absolute;
    top: 567px; /* Top coord of hotspot (relative to parent, bottom: 20px is also valid) */
    left: 44px; /* Left coord of hotspot (right: 20px is also valid); */
      z-index:100;
}
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Mrunal

Commented:
Hi mycomac,
Can you share link for this problem you are facing, so that we can get bette clear picture what you want.
Chris StanyonWebDev
Most Valuable Expert 2018
Distinguished Expert 2018
Commented:
OK. A few things wrong with your code. You anchor has a class of hotspot, but your CSS is trying to style an Anchor within .hotspot. Your rule should be :

div.art-Header-jpeg a.hotspot { ... }

You're setting the top coordinate of the Hotspot to 567px but the parent container is only 150px deep so you're effectively setting it out of sight.

z-index doesn't come into it.

Have a look at this fiddle. I haven't included images, but hopefully you'll get the gist.

http://jsfiddle.net/ChrisStanyon/zY85B/
Jeff McClellanBusiness Development Manager

Author

Commented:
I made the changes (I think) that you suggested, but still don't have the hotspot positioned over the Name/address area of the header.  I've left it for you to see at http://www.agro-k.com/

The hotspot is located right below the search box.

here is the html and css I have

HTML
<div class="art-Header">
    <div class="art-Header-jpeg">
        <a href="http://www.agro-k.com/index.php?option=com_alfcontact&Itemid=148" class="hotspot" title="Contact Us">&nbsp;</a>
    </div>
</div>

CSS
div.art-Header-jpeg
{
      position: absolute;
      z-index:-1;
      top: 30;
      left: 0;
      width: 906px;
      height: 150px;
      background-image: url('../images/Header.png');
      background-repeat: no-repeat;
      background-position: center center;
}
div.art-Header-jpeg a.hotspot
{
    width: 130px; height: 88px;
    position: relative;
    top: 44px; /* Top coord of hotspot (relative to parent, bottom: 20px is also valid) */
    left: 567px; /* Left coord of hotspot (right: 20px is also valid); */
      z-index:100;
}
WebDev
Most Valuable Expert 2018
Distinguished Expert 2018
Commented:
OK. You're nearly there. You need to set your A tag to display as a block element, so add display:block to your CSS.

div.art-Header-jpeg a.hotspot {
   display:block;
   width: 130px;
   height: 88px;
   position: relative;
   top: 44px;
   left: 567px;
}

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Your measurements seem to be slightly off, so you might want to add a border to the anchor tag just to make it easier (border: 1px solid red;). Don't forget to remove it once you've got the positioning right.

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