Is it possible to have a triangular background on a slider to show getting larger?

Pretty simple to do the triangle:

#triangle-left { 
    width: 0; 
    height: 0; 
    border-top: 
    50px solid transparent; border-
    right: 100px solid blue; 
    border-bottom: 50px solid transparent; 
                                }

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There is no reason you can't do the size change with scripting.

Cd&

That doesn't seem to work at all...

Without a link to the page I have no clue what you are doing and why the style is not working.  Code like what I posted is used alover the web, so if it not working on your page, the problem is on your page.

Cd&

I need it to work with this http://jqueryui.com/slider/

and make it look like this...


Thank you

Okay so what does not work.  The CSS does not produce the triangle, or your scripting is not able to correctly integrate and manipulate it?  As I already indicated, there is only limited suport I can do if the most important information about the page is not available because you won't post a link.

Cd&

Hi,

Sorry I do not have a live URL that I can post...
I have done a quick fiddler here to show you how it is displaying for me though.

http://jsfiddle.net/xpsawu4j/

Thank you for your help.

I don't see any code to modify the size or position of the triangle or to even give it an initial position.  

It is not magic, the browser is not going to anything unless you script it.  As it stands you have a fragment of code that has no context and you are not doing anything but displaying the div. Dynamic effects require scripting to be dynamic.  Unless I can see the page there is not much I can do to help further, but the scripting should not be that difficult.  However without knowing how much jquery trash you have bloating the page it might be messy.

Cd&

I dont understand what the problem is here?
I need help scripting it, that is why I raised the issue in the first place. You asked me for code that I am using and I have provided the relevant snippet in a jsfiddle. You do not need to worry about what else is on the rest of the page, that is my problem.
If the help I receive on here can make that JS fiddle look right then I can take that, from what it has shown me, and apply it to my instance.

Are you able to amend the fiddle to look something like what I need?

Thanks

I managed to come up with the answer myself