Adjusting Mobile Header Navbar 7.1

Site URL: http://feastworship.com

I'm trying to adjust the header on mobile so that it doesn't overlap with the picture. How do i do this?

Add to Home > Design > Custom CSS

@media screen and (max-width:767px) {
.homepage #page section:first-child {
    padding-top: 150px !important;
}
}

I added the code, but it still doesn't seem to work. Here is my complete custom css:

 

@media screen and (max-width:767px) {
.homepage #page section:first-child {
    padding-top: 150px !important;
}
}

a.header-nav-folder-title:hover+div,.header-nav-folder-content {
    text-align: center !important;
    position: absolute;
    background: #9B8A7D !important;
    left: 40% !important;
    right: unset !important;
    -webkit-transform: translatex(-50%);
    -o-transform: translatex(-50%);
    transform: translatex(-50%);
}

header {
position: absolute;
 width: 100%;
z-index: 4;
}

remove my code, add this

@media screen and (max-width:767px) {
.homepage #page section:first-child {
    margin-top: 20px !important;
}
}

Got it to work. I set it at 80px.  Thank you!

One more question. How can i set a fixed height for the header picture in general? My client is still having problems with the navbar overlapping with the header picture on his laptop.