nav.category-navigation>ul>li:nth-child(1)>a::before {
  background-image: url('../images/Icon_popular%20questions%404x.png');
  content: "";
  background-size: auto 30px;
  margin-right: 16px;
  height: 30px;
  width: 30px;
  display: inline-table;
  background-repeat: no-repeat;
  background-position: center;
}

nav.category-navigation>ul>li .menu-item-image {
  width: 30px;
  height: auto;
  margin-right: 16px;
}

nav.category-navigation li li a {
  padding-left: 70px !important;
}