@media screen and (max-width: 760px){
    header{
         flex-direction: column;
     }
 
     main {
         flex-direction: column;
     }
     h2{
         font-size: 38px;
     }
     img{
         width: 90px;
         margin-top: 100px;
         margin: 90px;
     }
 
     ul{
         text-align: center;
     }
     h1{
         margin: 70px;
     }
}