*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: sans-serif;
}

body{
    background-color: rgb(0, 0, 0);
}

main{
    height: 100vh;
    width: 100%;   
    background-image: url(/img/underc.jpeg);
    background-repeat: no-repeat;
    background-size: auto;
    background-position: center;

}
@media (max-width: 600px) {
    main{
   
    background-image: url(/img/underc2.jpeg);
    background-size: cover;
    

}
}