Hi Eri
To reduce the height of your menu bar try adding the following to the Custom CSS field of your templates parameters...
#hornav > ul > li > a {
padding-bottom: 10px;
padding-top: 10px;
}
#hornav .menu li [class^="fa-"]:before, #hornav .menu li [class*=" fa-"]:before {
top: 12px;
}
For the logo area you can also add the following (edit to taste)..
#container_header, .header_bar {
height: 100px;
}
Note you will also have to edit the stop position of your menu on scroll by editing the following in your templates scripts.php...
jQuery("#container_hornav").sticky({ topSpacing: 122 });
Sorry to say I do not understand your last query?
Ciarán