Hi @ratillung,
Thanks for writing in!
To remove the drop shadow under the navbar, please add the following CSS code in the X > Theme Options > Global CSS (http://prntscr.com/evui3r)
.x-navbar {
border: none;
box-shadow: none;
}
The sticky navbar can be disabled by going to X > Theme Options > Header > Navbar and set the position to “Static Top”.
After making any of this changes, since you have installed a caching plugin W3 Total Cache, please clear your plugin cache before testing your site. This can cause the changes to not take place on the front end. It will eventually show up when the cache regenerates, but it’s not ideal if you’re looking to see your changes immediately. Caching plugins are best to turn on only when you’ve finished building the site.
Please let us know how it goes.