Margin Between Fieldset Legend and First Row

I wish to adjust the gap between Employee Info and Name:
https://snippet.webix.com/vrhmhwnj

I able to change that with global css

.webix_view .webix_layout_line  {
    margin-top: -10px;
}

But, I only want to apply to certain fieldset instead of all. Any idea? Thanks.

https://snippet.webix.com/0z0sqwdx