change menu link style

Dear @gusdevsp11

The screenshot you have provided is not enough to find out the exact problem please share your page link also.

On mouse over, i need remove underline

Dear @gusdevsp11

Use this css

@media (min-width: 992px)
.navbar-nav > .menu-item:hover > a::after {
width: 0% !important;
opacity: 0 !importan;
}