CSS help

Hello, I need some assistance with CSS, for some reason the ones I am using are not working. http://bloomrestaurant.com/ I need to: 1. Expand the Slider size (right/left) to match the navigation menu width 2. Move Slider up to be right under the navigation menu, (no space between them) 3. Rid Slider of navigation arrows, for some reason this is not working: #slider-nav { display: none; } 4. Rid the gray dividing line below the slider 5. Sticky Menu. I tried this and dd not work: #header-menu-sticky-wrapper { margin: 0 !important; } Thank you Luis