#sA-2 .main-menu{
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  margin: auto;
}
#sA-2 .main-menu > a{
  font-size: 1vw;
  font-weight: bold;
  color: #033070;
  background: #fff;
  width: 11vw;
  margin: 0.5em;
  line-height: 3em;
  border-radius: 0.5em;
  text-decoration: none;
  transition: 0.2s;
}@media screen and (max-width: 1024px){
  #sA-2 .main-menu > a{
    width: 100%;
    font-size: 4vw;
    display: block;
    margin: 0.5em 0;
}}
#sA-2 .main-menu > a:hover,
#sA-2 .main-menu > a:active{
  background: #ddd;
}