Change navigation item to button (Basil Template)

Is there CSS to change a navigation item in Basil to a button?

@janandsusan Add to Home > Design > Custom CSS

First Item to button

.Header-nav-item:nth-child(1) {
   background: #fff;
   color: #000 !important;
   padding: 5px 10px !important;
   border-radius: 50px;
   font-size: 15px;
}

Second item to button

.Header-nav-item:nth-child(2) {
   background: #fff;
   color: #000 !important;
   padding: 5px 10px !important;
   border-radius: 50px;
   font-size: 15px;
}

Do Similar!