div.side_container{
   display: flex;
   flex-direction: row;
}
div.side_container img{
   max-width: 40vw;
}
@media only screen and (max-width: 700px){
   div.side_container{
      flex-direction: column;
   }
   div.side_container img{
      max-width: 100vw;
   }
}