script - Query checkboxes with no scrollable toolbar

[weblike]

Hi,

I am using Initialisation script in a query:
config.scrollable=false;

the result is that the checkboxes are not shown entirely.(see image bellow)

With inspect element of the browser I see that if I add "padding-bottom:10px; -> then the checkbox is ok.
I create a class in my custom.css with :
.checkbox-label-custom{
padding-bottom:10px;
}

I use this class in Render Script as:
$("#" + parser.m_gridId).find (".k-checkbox-label").addClass ("checkbox-label-custom");

but nothing happens.
Any idea please!!!