FireFox Marquee Direction Down Div Bug
Interesting FireFox Marquee Bug (or is a Feature?)
[If you are just looking for sample code, to create a marquee, I have a sample. However it is designed to demonstrate a bug. If you want it to work correctly, you might want to remove the style block at the bottom of the code block.]
While I was trouble shooting someone's mySpace profile, I came across some interesting behavior, related to FireFox and the marquee tag.
I tested the behavior outside of mySpace, so this problem is not caused by anything in the myspace code.
For some reason, when used with direction=down (or direction=up); the marquee thinks it is inside an additional div.
On the page I was troubleshooting, the marquee was in a div. It was several tables and one div deep.
The code had a style block, which had the following line:
table div div {display:none;}
Initially I thought maybe I had missed a div layer, but if that had been the case, then why did it work with direction:left.
I ended up doing several tests.
It worked fine if I used direction=left or direction=right.
It failed to show the marquee if I used direction=down or direction=up.
If I removed the style command
table div div {display:none} it worked with direction=down.
Here is some very basic marquee code. (It is a complete html block, feel free to cut and paste it into an html editor and run it.)
First, run it as it is, it should work, the marquee should move left.
Next, change left to down. It will no longer work (in FF, it is fine in IE)
Then remove the line:
div div {display:none}
It should work.
Note that the marquee is only ONE div deep.
[If you are just looking for sample code, to create a marquee, I have a sample. However it is designed to demonstrate a bug. If you want it to work correctly, you might want to remove the style block at the bottom of the code block.]
While I was trouble shooting someone's mySpace profile, I came across some interesting behavior, related to FireFox and the marquee tag.
I tested the behavior outside of mySpace, so this problem is not caused by anything in the myspace code.
For some reason, when used with direction=down (or direction=up); the marquee thinks it is inside an additional div.
On the page I was troubleshooting, the marquee was in a div. It was several tables and one div deep.
The code had a style block, which had the following line:
table div div {display:none;}
Initially I thought maybe I had missed a div layer, but if that had been the case, then why did it work with direction:left.
I ended up doing several tests.
It worked fine if I used direction=left or direction=right.
It failed to show the marquee if I used direction=down or direction=up.
If I removed the style command
table div div {display:none} it worked with direction=down.
Here is some very basic marquee code. (It is a complete html block, feel free to cut and paste it into an html editor and run it.)
First, run it as it is, it should work, the marquee should move left.
Next, change left to down. It will no longer work (in FF, it is fine in IE)
Then remove the line:
div div {display:none}
It should work.
Note that the marquee is only ONE div deep.
<html>
<div class="friends" style="height:450px; width:100px">
<h1>friends</h1>
<marquee direction=left height=380 width=100 >
<img
src="http://i178.photobucket.com/albums/w275/madeline_fogg/80tom.jpg" />
<br>
<img
src="http://i178.photobucket.com/albums/w275/madeline_fogg/80-dick.jpg" />
<br>
<img
src="http://i178.photobucket.com/albums/w275/madeline_fogg/80-harry.jpg" /></a>
<br>
</marquee>
</div>
<style>
div div {display:none;}
</style>
</html>
posted by uāāl!ā at Saturday, September 01, 2007
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