@media(max-width:992px){

.grid-2{

grid-template-columns:1fr;

}

.grid-3{

grid-template-columns:repeat(2,1fr);

}

.grid-4{

grid-template-columns:repeat(2,1fr);

}

h1{

font-size:42px;

}

}

@media(max-width:768px){

.grid-3,

.grid-4{

grid-template-columns:1fr;

}

section{

padding:70px 0;

}

}