Hi,

For the Logo and the menu and for the footer the following css will work.

nav#main-navigation {
    position: absolute;    top: 50%;    transform: translateY(-50%);
}

.header-7 .search-nav {
    position: absolute;    
    top: 46%;    transform: translateY(-50%);
}

#footer-widgets .widget p {
  margin-bottom: 10px;
}