.wpb-layout-element-button[data-element="bartag"] .vc_element-icon {
  background-image: url("../images/dev-vc-logo.png");
}
.wpb_bartag .vc_element-icon {
  background-image: url("../images/dev-vc-logo.png");
}
.my_bartag.vc_element-icon {
  background-image: url("../images/dev-vc-logo.png");
}