Datatable styling

Hi!

  1. How remove blue line under header?
  2. How increace font in header?

https://snippet.webix.com/8o0gqomn

ps i won add tags as “datatable”, but not work for me - “No matches found”

to remove blue line

.webix_dtable .webix_ss_header .webix_hcolumn div.webix_last_row {
    border-bottom: 0px solid #5ccce7;
}

To increase font

.webix_hcell{
    font-size: 16px;
}