Floating content / adds "wordpress"

[JerXs]

I am in the process of launching a blog for my website. I am trying to float adsense ads within posts, im using a plugin "adsense-delux" to manage the ads.

so I tryed wrapping the adds in a div.... <div class="120x240"><!--adsense#120x240--></div>

then I proceeded to the style.css file under the default layout and added the folowing CSS..
#120x240 {
float: left;
}

Which should float the add to the left, but doesnt,

what am I doing wrong? there are alot of diffrent files included in the word press directory am I editing the wrong one?

Any help would be great.

Thank you, Jer

[all4nerds]

Hello

#a120-240 {float: left;} ID

.a120-240 {float: left;} class

and maybe give the div a width and height of ad

[JerXs]

Thank you,
Why would the class or id #120x240 work? #120-240 works just fine!

Thanks again, Jer

[all4nerds]

Hello

<div class="120x240"> class

#120x240{ ID they dont mix

#120x240 or .120x240 invalid css code
ID selectors should begin with a letter and contain only letters (A-Z, a-z), numbers (0-9), and the hyphen character (-). The CSS2 specification allows more (such as escaped characters) but these are not recommended due to style and compatibility reasons.

[marbly]

id or class name must never start with a number

[JerXs]

Im Still learning new stuff everyday, I had no idea that a class or ID could not start with a number.

Thanks for the help.