Why thumbnails size changed, tab position will auto changed also? Please help

[deroxonweb]

Hello Sir/Madam,

 

Could somebody tell me why I changed the size of thumbnails in global.css, but the tab position will be changed automatically also? I changed the css:

 

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From:

 

#thumbs_list li {width:99px;height:99px;float:left;cursor:pointer;margin:15px 10px 0 0;padding-left:10px;border:1px solid #cdcdcd;}

 

To:

 

#thumbs_list li {width:50px;height:55px;float:left;cursor:pointer;margin:15px 10px 0 0;padding-left:10px;border:1px solid #cdcdcd;}

 

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Then the tab position will move to right a bit around 10px. I tried to edit and check through all the code 1 by 1, but I still can't find out the problem, please give me a hand, I already crash at this problem more than 1 week. Please help. Thank you very much.

 

Best regards,

Derox