Hello Mate,
 
1, Please try to add the custom css code as this:
#header .header2 .menu-top {
   background: rgb(128, 18, 18); /*Change backgroud color at here*/
   position: relative;
   z-index: 100;
}
 
2, Please send me the site url. I need to check the problem in your site to see the problem and give you right solution. For now I checked on our site it is working fine:
http://demoleotheme.com/emarket/index.php/nike-prime-hype-df-mens-basketball-shoes.html
 
3, Please try to edit the file “app/design/frontend/ves_emarket/default/template/ves/shippingquote/estimate/form.phtml”