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I want to add different class (css) in widgets in site sidebar .

For example:

First widget in Sidebar -> class=sidebar-top1

Second widget in Sidebar -> class=sidebar-top2

third widget in Sidebar -> class=sidebar-top3

i want to add class in <div> tag.

how i can to do?

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2 Answers 2

up vote 2 down vote accepted

Check out this post I wrote on the wordpress.org board... it has some functioning code you can work from: http://wordpress.org/support/topic/how-to-first-and-last-css-classes-for-sidebar-widgets

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Nice! Wish I seen those topics yesterday. :) Anyway I needed to implement grid rows so different classes logic. One note for that code - no need to check for empty sidebar, hook fires per-widget so it simply cannot run when processing empty sidebar. –  Rarst Dec 25 '10 at 8:00
    
@Rarst Good call! I added a follow-up note with your comment on the original post--the WP board doesn't let you edit stuff. –  MathSmath Dec 25 '10 at 19:31

What a coincidence, I just spent several hours messing with widget classes. I won't post my resulting code because it does stuff that is more complex and out of context for your question. Here are basics (or maybe "basics"):

  1. Widget is passed through dynamic_sidebar_params hook.
  2. Widget data is $params[0].
  3. Sidebar name is $params[0]['name'].
  4. Opening widget wrapper is $params[0]['before_widget'].

So you can filter this hook, check for sidebar you want to modify, keep track of widget count (likely with static variable), modify wrapper and return modified widget parameters.

I am way to sleepy to write out specific code, leave a comment if you still need help with this and I will get back to it tomorrow.

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thanks Rarst but i dont understand your Description beacuse i cant use of it but math smath give a url that help me.. Have a good sleep :D –  mehdi Dec 25 '10 at 7:23

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