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I'd like to overlay a div (or any element that'll work) over a table row (tr tag) that happens to have more than one column.
I have tried a few methods, which don't seem to work. I've posted my current code below.
I do get an overlay, but not directly over just the row. I tried setting the overlay top to $divBottom.css('top'), but that is always 'auto'.
So, am I on the right track, or is there a better way of doing it? Utilizing jQuery is fine as you can see.
If I am on the right track, how do I get the div placed correctly? Is the offsetTop an offset in the containing element, the table, and I need to do some math? Any other gotchas I'll run into with that?
$(document).ready(function() { $('#lnkDoIt').click(function() { var $divBottom = $('#rowBottom'); var $divOverlay = $('#divOverlay'); var bottomTop = $divBottom.attr('offsetTop'); var bottomLeft = $divBottom.attr('offsetLeft'); var bottomWidth = $divBottom.css('width'); var bottomHeight = $divBottom.css('height'); $divOverlay.css('top', bottomTop); $divOverlay.css('left', bottomLeft); $divOverlay.css('width', bottomWidth); $divOverlay.css('height', bottomHeight); $('#info').text('Top: ' + bottomTop + ' Left: ' + bottomLeft); }); });#rowBottom { outline:red solid 2px } #divBottom { margin:1em; font-size:xx-large; position:relative; } #divOverlay { background-color:Silver; text-align:center; position:absolute; z-index:10000; opacity:0.5; }<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <html> <head> <title>Overlay Tests</title> </head> <body> <p align="center"><a id="lnkDoIt" href="#">Do it!</a></p> <table width="100%" border="0" cellpadding="10" cellspacing="3" style="position:relative"> <tr> <td><p>Lorem ipsum dolor sit amet, consectetur adipiscing elit.</p></td> </tr> <tr id="rowBottom"> <td><div id="divBottom"><p align="center">This is the bottom text</p></div></td> </tr> <tr> <td><p>Lorem ipsum dolor sit amet, consectetur adipiscing elit.</p></td> </tr> </table> <div id="divOverlay" style=""><p>This is the overlay div.</p><p id="info"></p></div> </body> </html>
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By using a div with style z-index:1; and position: absolute; you can overlay your div on any other div . z-index determines the order in which divs 'stack'. A div with a higher z-index will appear in front of a div with a lower z-index . Note that this property only works with positioned elements.
You can use the CSS position property in combination with the z-index property to overlay an individual div over another div element. The z-index property determines the stacking order for positioned elements (i.e. elements whose position value is one of absolute , fixed , or relative ).
Bookmark this question. Show activity on this post. You should not be doing that... is not a valid HTMl markup... Rows can not be wraped by divs.
The <td> tag defines the standard cells in the table which are displayed as normal-weight, left-aligned text. The <tr> tag defines the table rows. There must be at least one row in the table. The <th> tag defines the header cells in the table which are displayed as bold, center-aligned text.
You need to make the overlay div have an absolute position. Also use the position() jQuery method for top and left positions of the row - here are the missing pieces:
var rowPos = $divBottom.position(); bottomTop = rowPos.top; bottomLeft = rowPos.left; // $divOverlay.css({ position: 'absolute', top: bottomTop, left: bottomLeft, width: bottomWidth, height: bottomHeight });
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