Hello,
1) Add the following code to Theme Options > Custom CSS
@media only screen and (min-width:992px){ .menu-main-container > ul:before, .menu-main-container > ul:after { content: ''; display: table; clear: both; } .menu-main-container > ul { display: flex; justify-content: center; } }
2) This is preloader. If you want to disable it go to Theme Options > General > disable Site preloader option.
Regards
