.nav>li>a {
     padding: 25px 6px 15px 4px;
 }
.nav-item,.nav-item-index{
     padding: 0;
 }
 .container .row div {
     text-align: center;
 }
 .right-button {
     margin-right: 0
 }
 .right-btn{
      margin-right: 10px;
 }
 .section-4  img{
    display: none;
 }