Hi Jacky !!
I am very glad to help you. To fix this issue, you need make these steps :
1. go to file app/design/frontend/sns_twen/default/template/page/html/head.phtml
2. you add code on the cards <style type=”text/css”></style>
<?php echo $themeCfg->getField(‘advance_customcss’); ?>
as shown in Figure
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