I initially installed Frontier and then made changes in the Editor. Is this was not so smart (especially when updates are made), I downloaded the Child Theme, installed it and then added the changes to the Editor. Previously, I was able to change the background color of the drop down (hover) menu. Currently it’s dark grey/black. I would like it in blue (#013567). Below is what I added to the Editor, but it doesn’t recognize it. Even if I change it to bright red (this is how I figure out I’m in the right spot to make changes) it doesn’t change it. I did go to Frontier Options, enabled the menu color and changed it to blue. That worked, but not the drop down section. Any ideas?

#menu-main {background-color: #013567; border-bottom: 1px solid #000; float: left; width: 100%; padding-left: 10px; z-index: 20;}
#menu-main .sub-menu, #menu-main .children {width: 180px; background-color: #013567; border: 1px solid #000; position: absolute; z-index: 30; display: none;	box-shadow: 0 1px 4px #000;}
#menu-main .sub-menu li, #menu-main .children li {border-top: 1px solid #013567; border-bottom: 1px solid #000;}