Thanks.
I played with it and finally got this:

#top #header_main > .container .main_menu ul:first-child > li > a {
    height: 50px !important;
    line-height: 50px !important;
}

#av-layout-grid-1 {
  margin-top: 0px !important;
}

.html_header_top.html_main_nav_header #top .av_menu_left .main_menu {
    margin-top: 100px;
}

But then it caused this: notice that the main_menu class is actually covers more into the second menu.. and I barely able to click the Worship and Connect links now.

Ok, here it is.